You were not listening to what the professor had said and your a

You were not listening to what the professor had said and your answer was totally______.
A、indirect
B、irrelevant
C、irresponsible
D、indefinite
【正确答案】：B
【题目解析】：A项: 间接的；B项：不相关的；C项：不负责任的；D项：无限期的，不确定的，根据题意：你没有在听教授说了什么，你的答案完全不相关。B项符合题意。