--- Derek, I owe you a thank – you for all your help.
---
A. If you please.
B. Don’t mention it.
C. That’s it.
D. All right.
网友回答
A. If you please.
(答案→)B. Don’t mention it.
C. That’s it.
D. All right.
解析：考查交际用语。If you please.劳驾；Don’t mention it. 别客气；That’s it.这就是；All right.好吧。根据上文。德雷克，因为你的帮助，我欠你一个感谢。结合语境可知选B。