— Sorry for what I have said to you.— . A. Don’t mention itB. You are niceC. Forget itD. Y

问题补充：

— Sorry for what I have said to you.

— .

A. Don’t mention it

B. You are nice

C. Forget it

D. You’d better not

答案：

A. Don’t mention it

B. You are nice

(答案→)C. Forget it

D. You’d better not

解析：考察日常用语,四个选项分别表示别客气,你很不错、别在意和你最好不要，根据上文很遗憾我对你的说的话——别在意。选C。