單選題

Mom: I think you have too much junk in your room. Why don’t you clean up right now? Mark: Junk? There is no junk. ____________ Mom: How about these empty boxes and broken mugs? Mark: They are for my art class.

 (A) We can ask for help.

 (B) You can say that again.

 (C) It’s too late to clean up.

 (D) I keep things for a reason.