Given the task definition and input, reply with output. In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.

F: Good evening, sir. What can I do for you? ,M: I'm Richard Johnson from Washington. I've been here for a meeting. I'm told a room has been booked for me, hasn't it? ,F: Just a moment please, sir.
(A) M: Ok. I can stay in my room and wait for your reply. (B) M: Thank you! I'd like to check in as soon as possible to prepare for the meeting. (C) M: I am afraid I did not quite catch what you were saying. Please repeat it. (D) M: Sorry. Someone called me. Can you call me back later?
B