听力原文：W: My room smells of cigarette smoke. I can't stand it. Could you change my room, please?
M: Let me see... I'm sorry, but we don't have any more non-smoking rooms. We won't charge you for your room tonight.
Q: what can you learn from the conversation?
(19)
A．The woman doesn't want to pay for the room.
B．The woman likes smoking.
C．The woman wants to have a non-smoking room.
D．There's no more room in the hotel.