He has already made up his mind. It’s no use_____ him.

He has already made up his mind. It’s no use_____ him.
A、try to persuade
B、trying to persuade
C、to try to persuade
D、to try persuading
【正确答案】：B
【题目解析】：本题测试固定结构“It's no use doing sth(做……是没有用的)”，所以B为正确选项。句子的意思是：“他已经下定决心了，劝他是没有用的。”