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: Lily, I can't catch up with the English teacher very well. ,F: What's the problem? ,M: You are quite good at English. Can you help me with it? ,F: Sure, but you'd better take an additional course in some English schools. ,M: English schools? What's that? ,F: This kind of school is good at helping people to improve their English. ,M: Is that different from our school's English course? ,F: Yes. Before you start your training, they will test you on your English first.
(A) M: Why do they charge such high fees? What's more, how can they know my English ability without any tests? (B) M: Our high school will test my English before training, right? (C) M: Why do they need to test my English before training? (D) M: Excuse me, could you repeat the question?
Example Output: C

Example Input: M: Have you got the list of who is coming to the party? ,F: Yes, I do. And I've told them to keep the date secrett. John hates that kind of thing. Do you remember when he found out that we bought him a birthday cake last year and that surprised Christmas party? He was angry. But this is different. Getting married is special and we've known him and Anna for years.
(A) M: You are right! Everyone knows he is getting married with Anna. We hold this party for them. (B) M: I am really sorry, I did not catch that. Would you slow down, please? (C) M: You are right! But it is his birthday! He won't get angry. (D) M: Jonh and Mary are getting married, we are looking forward to the party.
Example Output: A

Example Input: M: How long can I keep these? ,F: Newspapers and magazines are not allowed to be taken out. These books are due in 2 weeks, and don't forget to return them on time.
(A) M: Sure, I will turn these books back on time. (B) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) M: OK, I want to buy this new love novel, how much is it? (D) M: I want to borrow all these newspapers and magazines, I will turn them back in 4 weeks.
Example Output:
A