问题详情
Speaker A: Thank you very much for helping me with my history. Speaker B: ______
A.Sure thing. Don"t thank me!
B.You"re welcome. I"m glad I can be of help.
C.It was a piece of cake! Don"t mention it!
D.Oh, this is what I should do.
请帮忙给出正确答案和分析,谢谢!