How to list Category list in ACF Pro’s Select Field to choose from [closed]

Set the “Return Value” of the taxonomy to Term ID. This will return the term/category id so that when you
get the ACF taxonomy value by using get_field, it will return the id of your category.
Then by using following code you can show your 5 latest publish post under that category.

$cat_id = get_field('<your ACF field name>');
$args = array(
  'post_type'     => 'post', //or your postype 
  'post_status'   => 'publish',
  'posts_per_page' => 5,
  'cat' => cat_id 
);
$query = new WP_Query( $args );
if ( $query->have_posts() ) : 
    while ( $query->have_posts() ) : $query->the_post(); 
        the_title();
        the_excerpt();
    endwhile;
endif;
wp_reset_postdata();