单项选择题
M: I sent a letter to make reservation for a single room a few days ago.
W: I’m sorry. Your request arrived too late. There are some conferences in town this week, and rooms were completely full.
Q: Are there any spare rooms at the hotel（）
A. Yes, there are some spare rooms.
B. Yes, there is a single room.
C. No, all the rooms are taken.
D. Yes, there is a double room.