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: Was that telephone ringing? ,F: I didn't hear anything. ,M: I thought I heard it ring two or three times. ,F: Sometimes when the windows are open, you can hear our neighbors phone. ,M: Well, I'm expecting an important phone call and I don't want to miss it. ,F: Is it anything I should know about? ,M: Not really. It has something to do with work and doesn't really affect us here at home. ,F: Well, why don't you go ahead and do what you want to do outside? I'll call you if the phone rings. ,M: Thanks, I think I will. I've been waiting so long now. I'm getting nervous. I need to breathe in some fresh air.
(A) F: The phone you are waiting for will not come even you're very nervous, so just relax. (B) F: Don't be nervous about neighbor's phone, we won't hear it even with open windows. (C) F: I’m sorry, I don’t understand. Could you say it again? (D) F: It must be the phone you're waiting. We can't hear our neighbor's phone at any case.
Example Output: A

Example Input: M: My parents give me 300 yuan each month. ,F: 300 Yuan? That's 150 yuan more than I get from my parents.
(A) M: You get 450 yuan each month? I envy you. (B) M: You get 150 yuan more than I do. (C) M: Then you get 300 yuan each month, the same as I do. (D) M: I am really sorry, I did not catch that. Would you slow down, please?
Example Output: D

Example Input: M: Thanks so much for coming to our house. My wife and I really need someone to look after the children. After we had our first baby 6 years ago, my wife left her job as a lawyer to care for him. Then we had a little girl. That was 2 years ago. But my wife has decided to start teaching at a university, so we'd like to hire someone to watch them during the day. ,F: Well, I have a lot of experience taking care of children. I started baby-sitting my own little brothers and sisters when I was in middle school. I also looked after other people's children to make money when I was in high school, and last year I took the Red Cross safety course so I know basic first aid.
(A) M: As you only started looking after your sister when you were in university, I doubt your experience. (B) M: You started looking after children ever since middle school, so it seems that you are really experienced. (C) M: So your experience of looking after kids started with your only brother when you were in high school. (D) M: Excuse me, could you repeat the question?
Example Output:
B