—I was busy with my homework while you were away to- night, Dad.

—______ The TV set is hot. [ ]

A. I believe it.

B. I think so.

C. You're kidding.

D. You're excellent.

关于“答案”和“答应”正确的说法是（）。

A.都是动词

B.前者是动词，后者是名词

C.都是名词

D.前者是名词，后者是动词