—You are nice in this dress.—A. It’s right.B. No it isn’t.C. Thank you.D. OK.

问题补充：

—You are nice in this dress.

—

A. It’s right.

B. No, it isn’t.

C. Thank you.

D. OK.

答案：

A. It’s right.

B. No, it isn’t.

(答案→)C. Thank you.

D. OK.

解析：此句的含义是你穿着这件衣服真漂亮。当对方赞扬你的时候，我们应当说thank you或thanks，故选C。