when trying to copy line 43 - 48 of options.php, I got an error message "Parse error: syntax e

when trying to edit options.php by copying line 43 - 48 of options.php to increase the no. of my sliding homepage pix, I got an error message

"Parse error: syntax error, unexpected T_DOUBLE_ARROW in /home/content/44/10903544/html/wp-content/themes/d5-business-line/inc/options.php on line 42"

what should I do to make this error message solved pls? Thanks