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: The food looks really delicious. ,M: Sure it is, the wedding ceremony is wonderful, too. ,F: The bride looks so happy today. Are you a friend of Catherine's? ,M: Yes, we were in the same class at college. How about you? ,F: I'm a close friend of David's. How handsome he is in wedding clothes today. Well, may I have your name please? ,M: Jackson. I'm working in Chengdu, but I worked in Wuhan a year ago, and you? ,F: My name is Janet. I'm living in Mianyang. Ah, life in Chengdu, is it exciting?
(A) M: I've been working in Wuhan all the time. (B) M: Before working in Chengdu, I lived and worked in Mianyang. (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: I've just moved in Chengdu this year.
Example Output: D

Example Input: M: Sophie, did you see that quiz show last night, the one presented by Frank Jones? ,F: No, was it any good? ,M: It was great. Frank Jones always makes me laugh. I've been watching it for the past couple of weeks. ,F: Do you think so? I don't understand why so many people think he's funny. ,M: Well, you're the fifth or sixth person I've told to see it. Some of my friends thought it was going to be too serious, so they didn't bother watching it.
(A) F: I’m sorry, I don’t understand. Could you say it again? (B) F: It's your first time watching Frank's show? He's funny, just like you are. (C) F: Oh, my friend. I can see that you are such a fan of Frank Jones' quiz show. (D) F: Dear, Frank is so funny! I'm happy that we are both fans of his quiz show.
Example Output: C

Example Input: F: Honey, we still have some extra money after buying the TV set last week. If you want to buy something else, you can. ,M: Well, I need a bike. I don't want to go to work by bus anymore. There are so many people on the bus sometimes that I just can't get on it. ,F: What do you think of walking to work for exercise? I actually think you need a new computer. Your old one is pretty slow. ,M: Yes, I do need a computer. Then I will give up on the bike idea. Then I could have $400 to buy a new computer. ,F: Not just $400. I can give you $100 more than that. If you're going to buy a computer, you should buy a good one.
(A) M: Thank you, that's very sweet, then I have $300 to buy a new great bike. (B) M: Well, I think I definitely could buy a good computer with the $500 you gave. (C) M: I am afraid I did not quite catch what you were saying. Please repeat it. (D) M: Alright, I think $500 is enough to buy a good computer, I am going to have my first computer!
Example Output:
B