select

cat <<- EOF
Choose your option:
a) AAA b) BBB c) CCC d) DDD
EOF
while printf '#? ' && read -r ans; do
    case $ans in
        a) break;;
        b) break;;
        c) break;;
        d) break;;
        *) ;;
    esac
done

printf 'Some question (y/[n])?\n' && read -r ans
case $ans in
    y|Y) ;;
    *) ;;
esac