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, I'm mailing this package to Japan. ,F: Alright. Fill out this form about the contents and value. Do you want to insure it? ,M: I don't think so. It's only some books. ,F: Are you sending it surface mail or airmail? ,M: Airmail, please. ,F: OK. That's $25. ,M: Here's $30. ,F: Alright. Here's your change.
(A) M: So, as I'm mailing this package to China, it's free and the change is $ 30? (B) M: So, it needs $25, and as I give you $30, the change is $ 5? Okay, I see. (C) M: I am really sorry, I did not catch that. Would you slow down, please? (D) M: You mean the change is just $ 5? But you say that's $20, and I give you $30!
Example Output: B

Example Input: F: Good morning, sir. How can I help you? ,M: I'd like to rent a car for the weekend.
(A) F: OK. What kind of car would you like to reserve this Friday? (B) F: Excuse me, could you repeat the question? (C) F: OK. What kind of room would you like to book this Friday? (D) F: OK. What kind of car would you like to rent for this Monday?
Example Output: B

Example Input: M: Hello Mary, this is Tom speaking. Would you like to watch the football game in the stadium tomorrow afternoon? I have 2 tickets, which my uncle bought last week.
(A) F: It is so good that your uncle bought 2 tickets for the game. (B) F: I am happy to hear that your mother bought 3 tickets for the film. (C) F: Your father bought 3 tickets for us. That is so considerate. (D) F: I am really sorry, I did not catch that. Would you slow down, please?
Example Output:
A