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: Can I have my bill, please? ,F: Yes, one moment, please. ,M: Do you take credit cards? ,F: Sorry, we don't accept checks, either. You have to pay in cash.
(A) M: OK. I'll pay by credit card. (B) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (C) M: Fine. I will pay by cash. (D) M: You don't accept cash? How about credit card?
Example Output: C

Example Input: M: School is finally out. Do you have any plans this summer, Kate? ,F: Yes. In August, I'm going on a two week vacation to the Bahamas. ,M: Awesome! How much is that going to cost you? ,F: Don't ask. I have to work every single day this month, just to be able to pay for the vacation. ,M: I know what you mean. I've been saving up to buy a truck. I want to have one for the start of my last year of college. ,F: That would be nice. ,M: Well, it's too bad you won't be around in August. There's a famous English soccer team coming to town. ,F: I heard. At least I'll be able to see the Backstreet Boys in July. It's my favorite band. They're playing at the Victoria Theater.
(A) M: Cool! The Backstreet Boys is a very famous comedy show. (B) M: Cool! The Backstreet Boys is a very famous sports match. I've watched it before. (C) M: I am really sorry, I did not catch that. Would you slow down, please? (D) M: Great! Hope you can enjoy the concert.
Example Output: D

Example Input: F: How was your vacation? Did you go away? ,M: Yes, we went to Maine. Unfortunately, the flies and mosquitoes were bad and it rained most of the time. It's too bad because I used to enjoy going there.
(A) F: Really? It's very terrible to experience mosquitoes and rainy days on vacation. (B) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) F: I know Maine always has sunny days. (D) F: Really? It's very terrible to miss the flight when you go to Japan.
Example Output:
A