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: Hi, Mary, how are you doing? ,F: Fine. What happened to you yesterday? I didn't see you in class. ,M: Oh, I overslept as usual, what went on anyway? ,F: Mister Smith wants to see you in his office.
(A) M: I know, mom. (B) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) M: Don't forget we have a meeting about our project. (D) M: Did you help me hand in the homework?
Example Output: D

Example Input: M: Doctor Wilson, can I talk to you for a minute? ,F: Sure, Fred. What is it? ,M: I'm worried about my grade in your English Class. I really want an A, but. ,F: I see. Well, it might be hard for you to get an A. So far, you have a B average. You would need a 97 or 98 on your final exam to get an A. Do you think you can get that higher score? ,M: Probably not. The problem is that I have to have a B average in all the subjects to get the prize from our government. Otherwise, I'll have to find a part time job. I'm afraid it is difficult for me to put all my heart in my study if I have to work in my spare time. I'll probably get an A in history and a B in maths, but I'll get a C in chemistry.
(A) F: I am really sorry, I did not catch that. Would you slow down, please? (B) F: Sounds great that you can get A in history and maths. Happy for you! (C) F: You must have put in a lot of effort to get A in maths and chemistry! (D) F: Don' t be sad! At least you can get an A in history. Everything will be alright!
Example Output: D

Example Input: M: Where are you going next? ,F: I'm going to New York and then I'll go to Paris. After that, I'll visit London.
(A) M: I think you should go to Paris next then visit New York. (B) M: You don't want to go to  New York, why? (C) M: What are you doing in your next stop, New York ? (D) M: I am afraid I did not quite catch what you were saying. Please repeat it.
Example Output:
C