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: Researchers in America did some experiments to try to figure out why some people gain weight more than others do. ,F: Yeah, some people can eat whatever they want and they never seem to gain a pound. ,M: In this study, volunteers were given 1000 extra calories a day. About 2 pieces of cheese's worth of extra intake. ,F: This kind of study I'd like to be in.
(A) M: You prefer excise and you don't want to take 1200 extra calories so you don't like this experiment. (B) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) M: Because you want to lose weight and you don't want the extra 1200 calories but you still want to join the experiment. (D) M: Because you enjoy the food.
Example Output: D

Example Input: M: Professor White, I'd like to have your advice on my article. ,F: It's good except for some spelling mistakes. What's more, the second paragraph is about another topic. It should be crossed out.
(A) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) M: People will have a bad first impression of you since your handwriting is so poor. (C) M: The level of a man's speech has nothing to do with his level of writing articles. (D) M: Thank you. I will take out the second paragraph that is not related to the article.
Example Output: D

Example Input: M: I'd like to congratulate you on your wonderful performance. ,F: Thank you very much. ,M: I read about you in the newspaper and decided to come and hear you play. I have traveled many miles and I'm very glad I made the effort. You played the piano beautifully. What are your next plans? ,F: At present, I'm giving a lot of concerts. Fortunately, people want to come and hear me play. But I'm getting very tired of traveling.
(A) M: You are working so hard. I knew about your performance from TV. (B) M: You are working so hard. I learnt about you from the Internet. (C) M: You are so stressed. I knew you didn't perform well from the newspaper. (D) M: I am afraid I did not quite catch what you were saying. Please repeat it.
Example Output:
D