Is this the reason ________ she gave for not finishing her homework yesterday?

A.why

B.for which

C.that

D.to which

答案及解析： C

句意：这是她为昨天没有完成作业而给出的理由吗？在此题中reason后面的定语从句要用that引导，这是因为that要作gave的宾语。