It is obvious he has known the news and he is very satisfied with the result.A. whichB. t

问题补充：

It is obvious he has known the news and he is very satisfied with the result.

A. which

B. that

C. what

D. whether

答案：

A. which

(答案→)B. that

C. what

D. whether

解析：本题的it代替后面的主语从句，主语从句是陈述句通常可用that来连接，故本题选B。