It's no ------- debating with Tom,because he will never change his mind a,help b.use c.time d.while

It's no ------- debating with Tom,because he will never change his mind a,help b.use c.time d.while
It's no ------- debating with Tom,because he will never change his mind a,help b.use c.time d.while

It's no ------- debating with Tom,because he will never change his mind a,help b.use c.time d.while
b

B it's no use doing sth

b
和Tom争论是没用的，因为他从来不会改变想法。