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: Good afternoon, madam. How can I help you? ,F: Well, I am a little bit out of shape. I think I should get some exercise to keep fit. What kind of service do you offer? ,M: First of all, we'll work out a plan according to your physical conditions and your personal needs. ,F: How can you get that done? ,M: Well, we give each of our customers a qualified personal trainer. The trainer will give you a fitness assessment and then come up with a plan. ,F: What else?
(A) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) M: No worry. We have no trainer here, so I'll come up with a plan for you. (C) M: You'll get a plan from your trainer. Then we give you a fitness assessment. (D) M: Nothing else. A qualified trainer will take full charge of making your plan.
Example Output: D

Example Input: F: I know you pay a lot of attention to exercise in your daily life. Could you tell me something about exercise? ,M: OK. I'm just interested in exercise. The importance of exercise is nothing new. Thomas Jefferson once wrote that to be successful and academic studies, a person should give about 2 hours everyday to exercise. ,F: 2 hours every day? I can't do that. ,M: Most experts today do not demand 2 hours of daily exercise. They recommend that people get 60 minutes of moderate to vigorous physical activity most days of the week.
(A) F: Well, I see, jogging for 2 hours everyday is pretty challenging, but I'll have a try. (B) F: Well, I don't think doing exercise for 1.5 hours every Monday is tough. (C) F: Okay, reading for 1 hour everyday is not hard, I think I can do that. (D) F: Excuse me, could you repeat the question?
Example Output: D

Example Input: F: Let me have a look at the exam results. Thomas, 98. William, 85. Oh, my God. Catherine, only 50. She won't be happy when she sees the mark, for history is her favorite subject. ,M: So I have to have a talk with her this afternoon. Maybe she should do some extra exercises. And reading more is also a good approach.
(A) F: You are so nice to give Catherine more exercises. I hope that she will not hate history anymore. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: It is OK for you to ask Catherine to read more, she likes math the most. She will make progress. (D) F: She must feel sad about the score. I wish you can have a nice talk with her in the afternoon.
Example Output:
D