How to put the author of the post in the comments?

I need to put the name of the author who wrote the post and I can't find the solution.

EXAMPLE:

Rachel [06/03/21] : Commented in the post How to be a Web Designer, written by: POSTAGE AUTHOR - Test Comment

?php
    $args = array(
        'user_id' = bp_current_user_id(),
        'number' = 20, // how many comments to retrieve
        'status' = 'approve'
        );

    $comments = get_comments( $args );

    if ( $comments )
    {
        $output.= ul\n;
        foreach ( $comments as $c )
        { 
        $output.= 'li';
        $output.= $c-comment_author;
        $output.= ' [';
        $output.= mysql2date('d/m/y', $c-comment_date, $translate);
        $output.= '] ';
        $output.= ' : ';
        $output.= 'a href='.get_comment_link( $c-comment_ID ).'';
        $output.= get_the_title($c-comment_post_ID);
        $output.= /a;
        $output.= ' - ';
        $output.= $comment-user_id;
        $output.= $c-comment_content;
        $output.= /li\n;
        
        }
        $output.= '/ul';

        echo $output;
        
        
    } else { echo No comments made;}
?