W: Paul, is that you? M: Yes, Mary. What can I do for you? W: Sorry to call you. But I just delivered my new computer. I am afraid I can't lift it by myself. Could you give me a hand to get it upstairs? M: Sure. Could you just give me a minute to finish off what I am doing? W: Yes, of course. But please hurry. The box is getting in the way. M: Don't worry. I'll be right down., Question: What is the man doing when the woman calls? (A) He is moving a box (B) He is working upstairs (C) He is waiting for the delivery
(B) He is working upstairs