Adding n/a option to few statements in matrix table carousel

Hello,

Would it be possible for n/a option to show up only for specific statements in the Carousel for matrix tables? The javascript I found here works for Standard likert and Profile but not in Carousel:

`jQuery(".ChoiceRow:eq(1) .last").hide();`

or

‘var lastTds = jQuery("#"+this.questionId+" td.last");
var hideRows = [1,2.3];
jQuery.each(hideRows, function(i,val) { lastTds.eq(val-1).find("*").hide(); });

Is there a way to modify this script for Carousel?