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.

Input: Consider 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.

Output: D


Input: Consider 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.

Output: D


Input: Consider Input: M: Today I'm talking to Marta Dancedand who runs her own mobile restaurant. Marta, how did you get into the restaurant business? ,F: Well, I learned to cook at college. I always wanted to open my own restaurant, but had no money so I got a job as a chef. I had all sorts of ideas for new dishes, which the staff thought would sell but the boss wasn't interested. That's when a friend told me about the mobile restaurant idea. It sounded great. ,M: Tell us about it. ,F: Well, it works like this. You decide on a menu. Obviously you have to be able to cook. Then you advertise it so people can book a meal. The most amazing thing is all the advertising is done through websites. People set up tables in their sitting room or in a city car park, an empty factory, anywhere in fact and because you know how many people you're cooking for, food doesn't get wasted. ,M: So why is it good for you? ,F: Well, various reasons, like I could buy all the things without risk because customers pay in advance. The greatest advantage, though, is by having 10 customers at most. I don't need to hire a waiter. ,M: Do you ever run into problems?
(A) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) F: Of course. I don't need any waiter, so I can save the budget. That's the best part about the mobile restaurant . (C) F: Of course. But the best thing is that my waiter I can work outdoors, so I can have a flexible schedule. (D) F: Yes, I don't like that customers delay their payments. But I love that I don't need any waiter.


Output: B