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: M: Excuse me, Miss, is there a plane to New York? ,F: Uh, let me see. One just left half an hour ago and the next one will be in 2 hours.
(A) M: Thank you, since I want to go to Washington, I asked planes to Washington. (B) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) M: Since I asked about how to book a ticket to London, I'll take one. (D) M: Thank you. Is there anyone besides me asking about the plane to New York?
Example Output: D

Example Input: F: Good evening, sir is there anything wrong? ,M: I'm afraid there is, and the service here has been terrible. We had to wait 40 minutes for the soup and then it was stone cold.
(A) F: Sorry. I will serve the soup for you right away. (B) F: I will take a look for you to see why the play hasn't started in the theater. (C) F: Excuse me, could you repeat the question? (D) F: I don't know why the bus hasn't come yet.
Example Output: A

Example Input: M: Do you know Sally's new address? She's got some mail here, and I'd like to send it to her. ,F: Well, we have not been in touch for quite a while. Let's see. Mary should know.
(A) M: I know her new address. Let me get in touch with Mary directly. (B) M: I’m sorry, I don’t understand. Could you say it again? (C) M: Please tell me her new address because I have to send some mails to her. You must know it. (D) M: Maybe I should get Mary's new address.
Example Output:
B