听力原文:W: Good afternoon, sir. Do you have a reservation? M: Yes, my name is Carl Lee. And I'd prefer a smoking room, please. W: OK, sir. Here is your key. And the number of your room is 218. I'll have the porter bring your bags up. M: Good. Thank you for your help. What are they doing now?
A.
The receptionist is introducing the hotel to the man.
B.
The receptionist is helping the man bring his bags up.
C.
The receptionist is helping the man to check in.
D.
The receptionist is helping the man to check out.