Where to hold the Olympic Games was a subject the Olympic Committee argued for a lon

问题补充：

Where to hold the Olympic Games was a subject the Olympic Committee argued for a long time, and finally they voted for London.

A. of which

B. with which

C. about which

D. into which

答案：

A. of which

B. with which

(答案→)C. about which

D. into which

解析：定语从句考查题。先行词a subject关系词which要做argue about 的宾语。句意：在哪里举办奥运会是一个话题，就这个话题奥委会争论了很长时间最终决定选伦敦。