M: Hello, reservation desk. How can I help you? ,F: I'd like to book a room. ,M: And what kind of room would you like ma'am? And we got single rooms, double rooms, standard rooms, sweets and Delux sweets. ,F: What's the rate for a standard room? ,M: $79 a night. ,F: I'd like a standard room. ,M: What date would you check in ma'am? ,F: December twenty-third, please. ,M: How long do you plan to stay? ,F: Four days.
(A) M: So, you mean you plan to stay three days and you will check out on December 23rd? (B) M: I am afraid I did not quite catch what you were saying. Please repeat it. (C) M: So, you plan to stay 4 days and you will check out on December 27th? (D) M: Oh, I see. You would like a single room and will check out on  December 27th.
C