—My professor and I have seen your paintings at the exhibition. They are so creative!—.A.

问题补充：

—My professor and I have seen your paintings at the exhibition. They are so creative!

—.

A. No problem

B. Thanks for your compliment

C. Not at all

D. Nothing wrong

答案：

A. No problem

(答案→)B. Thanks for your compliment

C. Not at all

D. Nothing wrong

解析：A. No problem没问题 B. Thanks for your compliment 谢谢你的赞赏 C. Not at all不客气 D. Nothing wrong没有什么错的；句意：我的教授和我已经在展览馆看见你的油画了，它们太有创造性了。谢谢你的称赞。故选B