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.

Example Input: F: Look at the monkeys running around on the rocks. They are so lovely. ,M: Yes, their surrounding seems to suit them very well. Let's go over and see the panda now.
(A) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) F: Before we go, do you know where is the toilet in this zoo? (C) F: Excuse, how much are these in total? (D) F: I can't find this museum's exit.
Example Output: B

Example Input: M: By the way, miss. Where is the toilet? ,F: The toilet is there, but I'm afraid it's full at the moment. ,M: What? Oh, I think I have to wait. Thank you very much for your help, miss.
(A) F: No problem. Since you have known where the toilet is, you'll have to wait. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: I don't know where the toilet is, but you're booking a table, aren't you? (D) F: I don't know where the toilet is, but you're waiting for me, aren't you?
Example Output: A

Example Input: F: Hi, Jack, are you doing anything on Friday night? ,M: Hmm, Friday night? ,F: Yes, the day after tomorrow.
(A) M: You mean tonight? It's Friday and I've done my work, so I'll be free. (B) M: I am afraid I did not quite catch what you were saying. Please repeat it. (C) M: Tomorrow is Friday. Let me look my agenda. (D) M: Oh, I nearly forgot it's Wednesday today.
Example Output:
D