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: Hi, Bob, do you know anything about boxing? ,M: Yes, it's a sport that does good to bodybuilding. ,F: Oh, I just think it is about fighting.
(A) M: Excuse me, could you repeat the question? (B) M: Although boxing isn't good for bodybuilding, how could you think it is about fighting? (C) M: Haha, a lot of people think boxing is fighting like you do. (D) M: Yes, as you said, boxing is a skill, but it's not good for bodybuilding at all.
Example Output: C

Example Input: F: Hi, Rob. Do you mind if I eat lunch with you? ,M: No, Mrs. Evans, not at all. ,F: Thanks. I've just heard you study nutrition and you've got quite a lot of experience working in the cafeteria, so I wonder if you are interested in a small project we're doing this term. ,M: What is the project about? ,F: More and more students prefer not to buy meals here and we want to attract them back. I want to know what the students would like to eat. Your job will be finding this out. Of course, I also like to hear any of your ideas. ,M: Well, if the menus were changed, maybe I wouldn't have to listen to so much criticism this term. You know, everyone in the nutrition class sees me when I serve food here, so they always complain to me about the food here.
(A) F: Excuse me, could you repeat the question? (B) F: Now that your job is cooking food for the students, you can ask them what they like to eat. (C) F: As more and more students prefer to buy meals here, you must very busy everyday when serving food for the students. (D) F: Then you should tell them that you have improved meals' nutritional value, it's your job to tell them.
Example Output: A

Example Input: M: Why don't we go to Hawaii for our holiday, Mary? ,F: I think the Mediterranean is a better choice. It's sunny there. I'm tired of so much rain here. ,M: OK. Let's go there by train. It's much more convenient than by ship.
(A) F: Sure. Let's go to the Mediterranean by train, although there is so much rain there. (B) F: I am afraid I did not quite catch what you were saying. Please repeat it. (C) F: Why did you choose Hawaii for our holiday? (D) F: How about flying to Hawaii this holiday?
Example Output:
B