— Would you like to go out for a walk with us? 

— _______, but I must finish my homework first. [ ]

A. That's all right

B. Yes, I do

C. I'd love to

D. Of course not

会客服务主要是为客人做好会客前的准备工作，因此，要问清客人（）、时间，是否需要准备饮料、鲜花，有无特别服务要求等。