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.

Ex Input:
M: Do you like to go to the zoo on Sunday? ,F: Yes, I like to go to the zoo. But not on Sundays, because it's always so crowded. How about going on a Friday or Saturday?
(A) M: So you don't like going to the zoo on Sundays, do you? (B) M: So you don't like to go to the zoo on Fridays because it's crowded, right? (C) M: So you don't like going to the zoo on Sundays and Saturdays, do you? (D) M: I didn’t hear you. Please could you tell me again?

Ex Output:
A


Ex 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!

Ex Output:
D


Ex Input:
M: Did you talk to the Browns about their trip to China? ,F: Oh, yes. They came back 3 days ago. ,M: What did they say the weather was like? ,F: They said it was very, very cold. They suggested we take some warm clothes. ,M: Did they say something about the hotels there? ,F: It seems they are excellent and not very expensive. ,M: And, did they have any language problems there? ,F: They told me only few people there speak English. But those working in the hotel do and they are very helpful and friendly. ,M: Well, that's good. And did they buy much while they were in China? ,F: Just some souvenirs. They said clothes were much more expensive than in the USA, but they told me you could get gold jewelry for very little.
(A) M: And clothes are much more cheaper than in the UK. (B) M: In China, souvenirs are really cheap! Copy that! (C) M: Really!? We could get gold jewelry for very little in China! (D) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?

Ex Output:

C