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: Diana, can you give me a hand? I'm supposed to place all these new products in the display case, but they'll never fit. ,F: Yeah, I see what you mean. But did Miss Harper mean to put them all on display, or just one of each as a sample for the customers to see? ,M: Oh, I get it! So maybe I should just select a single example of each model instead of one of each color for each model. ,F: Check with Miss Harper first. But in my opinion, that's the only way you'll be able to do it.
(A) M: I manage to put them all in the case, but I can't find Ms.Harper to check. (B) M: It's all because of the limited space. Daisy, throw away these products. (C) M: Well, it's all because there isn't enough room for all the new products. (D) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?

Ex Output:
C


Ex Input:
F: Hi jack, what did you think of the lecture you attended last night? ,M: Well, I should have stayed at home. And half of people had left before it was finished.
(A) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) F: Yes, it is so moving! (C) F: Yes, the concert yesterday was really boring. (D) F: Why do you think it was boring?

Ex Output:
D


Ex Input:
F: This is Professor Brown's first lecture. What do you think of it? ,M: Wonderful! I have learned quite a lot today, which might be useful for my work after graduation. What's your opinion? ,F: I think so. He is so knowledgeable. His topic is close to our life, and his language is full of humor.
(A) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) M: Yes, I agree with you, Professor Brown is always erudite. I like him very much. (C) M: I think although the lecture is interesting, it isn't useful for my work. (D) M: Yes, Professor Brown's work is always great.

Ex Output:

A