This is the reason he gave me.A. whyB. for whichC. whichD. because

问题补充：

This is the reason he gave me.

A. why

B. for which

C. which

D. because

答案：

A. why

B. for which

(答案→)C. which

D. because

解析：考查定语从句。先行词是reason，定语从句中give后面要接双宾语，所以本定语从句却宾语，使用关系代词，故C正确。句意：这就是他给我的理由。