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: Could you please turn down the CD a little, Julia? Our son is sleeping. ,F: Sorry, dear. I didn't know.
(A) M: It's OK, my dear daughter, now you need to finish your homework. (B) M: It doesn't matter honey. Our sleeping son is so cute,right? (C) M: Don't worry, our son is listening the pop music. (D) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?
Example Output: B

Example Input: F: Have you completed the arrangements for the trip yet, Brian? ,M: I've made the reservations. But there are still some details to make sure. Your plane leaves at 8:30. So, I'll pick you up at your house at 6. ,F: Six? I'll have to get up in the middle of the night! ,M: I'm sorry, you have to check in by 7:00 and I think there will probably be a long queue. ,F: Oh, very well, what about my meetings? ,M: First, the managing director is coming to the airport to meet you.
(A) F: OK. The Managing Director will meet me. I remember. (B) F: I’m sorry, I don’t understand. Could you say it again? (C) F: The secretary will meet me? (D) F: The Managing Director will meet me later that day. OK, I know.
Example Output: A

Example Input: M: What a lot of rubbish and waste! I just wonder how people can deal with these things every day. ,F: Don't worry, there are many ways of dealing with them. The other day, I heard that a big rubbish factory is being built nearby, and it can be finished in 2 years. ,M: A rubbish factory. To produce rubbish, or to deal with rubbish? ,F: To deal with rubbish of course. ,M: How much rubbish can it deal with each day? ,F: Maybe 3,000 tons. I'm not sure. ,M: Our town will become cleaner after the factory is built.
(A) F: Sure, when the rubbish factory is fishined 1 month later, I hope it can make our dirty town cleaner. (B) F: Yeah, definitely, currently our town is pretty dirty, especially on the streets, you can see rubbish everywhere there. (C) F: Yeah, we got a big town with a larger populartion here, and there are three big rubbish factories in our town. (D) F: I am really sorry, I did not catch that. Would you slow down, please?
Example Output:
B