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: Did you hear the 6:00 o'clock news? ,F: No, I didn't, was there anything interesting? ,M: They've built another space station. They will send it up sometime next year. ,F: Oh, I've read about the plans somewhere. ,M: Just think, astronauts will live and do research work there. ,F: Really, but I wonder why you're so interested in such things. ,M: I've always been. I hope to go to the moon, one day.
(A) F: OK, I see. You mean you are interested in such news just because you hope to go to the moon, right? (B) F: Excuse me, could you repeat the question? (C) F: You are interested in such news just because you hope to go to the moon? Well,  I've never read about the plans. (D) F: You are interested in such news just because you want to do research in space? But they've not built another space station.
Example Output: A

Example Input: M: Hey Lindaï¼ did you get that letter about the new options for food service next year? ,F: Not yet, are there a lot of changes? ,M: There sure are, instead of paying one feet to cover all meals for the whole school year. We are now able to choose how many meals a week we want, and can contract just for that amount. We still have to pay the whole year at the beginning, but we can choose to buy 7, 10, 14 or 21 meals per week. They give you a card with a number of meals you get each week marked on it. ,F: That's a big change Tom, and a complicated system. ,M: Yeah, but it will be much better for people who don't eat 3 meals a day 7 days a week in the cafeteria, because they don't have to pay for meals they don't eat. ,F: So, what's the deal for those who do eat at school all the time? ,M: It better for them, too, because the more meals you contract for, the cheaper each one is. ,F: I see, it still sounds rather complicated. ,M: True, it took me several hours to figure it out. I decided to go with the 10 meal plan. ,F: Why is that? ,M: Well, I never eat breakfast and I often go away on weekends, so the 10 meal plan gives me lunch and dinner every weekday at a fairly low price, and I won't be paying for meals I don't usually eat.
(A) F: You are right. You will benefit from the changes next year. That is good. (B) F: That is true. You will benefit from the changes in our company. It is good. (C) F: I totally understand why you dislike the changes in our company. Do not be sad. (D) F: I am really sorry, I did not catch that. Would you slow down, please?
Example Output: A

Example Input: F: Could you come and help me repair the computer, Noel? I can't go on the Internet. ,M: You have to install an anti-virus software on your computer. If not, your computer will be attacked by viruses.
(A) F: Thank you for your advice. I will install anti-virus software after finishing my work. (B) F: Well, I'll wait in my office for you to repair my television. (C) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) F: Ok. I'd like to uninstall the anti-virus software after shopping.
Example Output:
A