$value = get_field('select_field');
if (in_array(array('A', 'B'), $value)) {
the_field('text_field_1');
}
if (in_array(array('A', 'B', 'C', 'D'), $value)) {
the_field('text_field_2');
}
if (in_array(array('B', 'C', 'D', 'E'), $value)) {
the_field('text_field_3');
}