— Come in, please. Make yourself at home.

— _____.

— I'm glad you like it. [ ]

A. Thanks. You have a nice place here.

B. Oh, this picture is so beautiful.

C. Thanks. What nice food you've prepared!

D. OK. Let me look around your new house.

防止泥石流的主要的工程措施不正确的是（　　）

A．辟林开荒

B．修建水库

C．开挖导流沟

D．修拦沙坝