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: F: Tom, if you don't mind spending the day with 2 girls, you can come with us to the National Park. ,M: I'd love to. Thanks.
(A) F: Great, so we'll be three together. (B) F: That's two people going to the National Park instead of just me. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: Great. This is the first time that four of us are going to the National Park together.
Example Output: A

Example Input: F: Adam, I heard you want to get in shape. Why not join the club I am in? ,M: Is it far from our neighborhood? ,F: No, it's just 10 minutes away from here by bike. ,M: What do you do there? ,F: Well, I often start out running for about half an hour and then I get in the swimming pool for an hour. ,M: I really like swimming. It's a good way to lose weight, isn't it? ,F: Oh, it certainly is. I was 135 pounds when I joined the club. Now I weigh just 120 pounds, and I'm sure I'll manage to lose another 10 pounds by the end of July. ,M: That's amazing. Perhaps I'll go and have a look at your club tonight.
(A) F: Are you going to lose weight by cycling? The club is only 10 minutes' walk from here. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: Although the club is 30 minutes away from here by bike, why are you going to lose weight by running? (D) F: Great, then you're probably going to lose weight by swimming.
Example Output: D

Example Input: F: Good morning. Can I help you? ,M: Yes, please. I would like to know about the courses in your school. ,F: Is that a summer course that you are interested in? ,M: Yes. ,F: Well, we have short full time courses during the summer. ,M: Hmm hmm... I would like to know how long one course lasts. ,F: Yes, each course last for 4 weeks.
(A) M: Excuse me, could you repeat the question? (B) M: 4 weeks for two courses? That's a little bit short for one course. (C) M: 14 weeks for only course? I don't think that my time permits. (D) M: 4 weeks for one course is reasonable.
Example Output:
D