Как добавить текст в левую часть кнопки в Android

Я разрабатываю приложение Quiz в Android, и мне нужно отображать параметры A, B, C, D внутри кнопки с левой стороны.

Итак, я знаю один способ, которым может быть установка изображения с помощью свойства drawableLeft кнопки. Но ставить четыре изображения не так уж и хорошо. Итак, я хочу знать, что если есть какой-либо другой способ сделать это, может быть установка текста внутри кнопки или каким-то другим способом?

Вот мой xml-код:

 <?xml version = "1.0" encoding = "utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android = "http://schemas.android.com/apk/res/android"
    xmlns:app = "http://schemas.android.com/apk/res-auto"
    xmlns:tools = "http://schemas.android.com/tools"
    android:layout_width = "match_parent"
    android:layout_height = "match_parent"
    tools:context = ".activities.QuizDashboardActivity">

    <ScrollView
        android:id = "@+id/scrollView4"
        android:layout_width = "match_parent"
        android:layout_height = "match_parent"
        app:layout_constraintBottom_toBottomOf = "parent"
        app:layout_constraintEnd_toEndOf = "parent"
        app:layout_constraintHorizontal_bias = "0.0"
        app:layout_constraintStart_toStartOf = "parent"
        app:layout_constraintTop_toTopOf = "parent"
        app:layout_constraintVertical_bias = "0.0">

        <android.support.constraint.ConstraintLayout
            android:layout_width = "match_parent"
            android:layout_height = "wrap_content">

            <ImageView
                android:id = "@+id/imageView"
                android:layout_width = "match_parent"
                android:layout_height = "300dp"
                android:scaleType = "fitXY"
                app:layout_constraintEnd_toEndOf = "parent"
                app:layout_constraintStart_toStartOf = "parent"
                app:layout_constraintTop_toTopOf = "parent"
                app:srcCompat = "@drawable/ic_banner" />

            <TextView
                android:id = "@+id/tv_question_no"
                android:layout_width = "wrap_content"
                android:layout_height = "wrap_content"
                android:layout_marginTop = "24dp"
                android:text = "1"
                android:gravity = "center"
                android:textAlignment = "center"
                android:background = "@drawable/custom_textview"
                android:textColor = "@android:color/white"
                android:textSize = "@dimen/question_no"
                app:layout_constraintEnd_toEndOf = "parent"
                app:layout_constraintStart_toStartOf = "parent"
                app:layout_constraintTop_toBottomOf = "@+id/tv_appname" />

            <TextView
                android:id = "@+id/tv_appname"
                android:layout_width = "wrap_content"
                android:layout_height = "wrap_content"
                android:layout_marginTop = "90dp"
                android:fontFamily = "@font/sansita_one"
                android:text = "@string/app_name"
                android:textColor = "@android:color/white"
                android:textSize = "@dimen/app_title"
                app:layout_constraintEnd_toEndOf = "parent"
                app:layout_constraintHorizontal_bias = "0.5"
                app:layout_constraintStart_toStartOf = "parent"
                app:layout_constraintTop_toTopOf = "parent" />

            <TextView
                android:id = "@+id/tv_question"
                android:layout_width = "0dp"
                android:layout_height = "wrap_content"
                android:layout_marginStart = "16dp"
                android:layout_marginTop = "100dp"
                android:layout_marginEnd = "16dp"
                android:text = "@string/q1"
                android:textAlignment = "center"
                android:textColor = "@android:color/black"
                android:textSize = "@dimen/question"
                app:layout_constraintEnd_toEndOf = "parent"
                app:layout_constraintHorizontal_bias = "0.5"
                app:layout_constraintStart_toStartOf = "parent"
                app:layout_constraintTop_toBottomOf = "@+id/tv_question_no" />

            <LinearLayout
                android:layout_width = "match_parent"
                android:layout_height = "wrap_content"
                android:layout_marginStart = "16dp"
                android:layout_marginTop = "40dp"
                android:layout_marginEnd = "16dp"
                android:orientation = "vertical"
                app:layout_constraintEnd_toEndOf = "parent"
                app:layout_constraintStart_toStartOf = "parent"
                app:layout_constraintTop_toBottomOf = "@+id/tv_question">

                <Button
                    android:id = "@+id/A"
                    android:layout_width = "match_parent"
                    android:layout_height = "wrap_content"
                    android:layout_marginTop = "@dimen/button_margin"
                    android:layout_marginBottom = "@dimen/button_margin"
                    android:background = "@drawable/custom_button"
                    android:text = "@string/q1_a"
                    android:textColor = "@android:color/black" />

                <Button
                    android:id = "@+id/B"
                    android:layout_width = "match_parent"
                    android:layout_height = "wrap_content"
                    android:layout_marginBottom = "@dimen/button_margin"
                    android:background = "@drawable/custom_button"
                    android:text = "@string/q1_b"
                    android:textColor = "@android:color/black" />

                <Button
                    android:id = "@+id/C"
                    android:layout_width = "match_parent"
                    android:layout_height = "wrap_content"
                    android:layout_marginBottom = "@dimen/button_margin"
                    android:background = "@drawable/custom_button"
                    android:text = "@string/q1_c"
                    android:textColor = "@android:color/black" />

                <Button
                    android:id = "@+id/D"
                    android:layout_width = "match_parent"
                    android:layout_height = "wrap_content"
                    android:layout_marginBottom = "@dimen/button_margin"
                    android:background = "@drawable/custom_button"
                    android:text = "@string/q1_d"
                    android:textColor = "@android:color/black" />


            </LinearLayout>

        </android.support.constraint.ConstraintLayout>
    </ScrollView>

</android.support.constraint.ConstraintLayout>

Вот результат: