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: Call your mom and tell her that we will be home later than expected. ,F: Um, we are in the tunnel now and the mobile phones' signals are dead.
(A) M: How do you know that your mom is in the area with poor signal reception? We are not in the tunnel now. (B) M: Can't you make a phone to your mom now, telling her that we will be home earlier? (C) M: Excuse me, could you repeat the question? (D) M: Do you think we should tell mom that someone is dead, even though the mobile phones' signals are good?
Example Output: C

Example Input: M: So what kind of job did you find for this summer? ,F: I'm working for a marketing company. I'm doing telephone marketing. ,M: Oh, so you are one of those people who drive me crazy by calling me up in trying to persuade me to buy something that I have no need for. Do you like it? ,F: Believe it or not, I do. There are a lot of students working there and we have a lot of fun when we're not making calls. It's really easy since we just have to read from a text.
(A) M: Sales on mobile phones make it easy for me to buy things. (B) M: Why are you annoyed with your job? (C) M: I really hate sales promotion. It makes me annoying. (D) M: I am really sorry, I did not catch that. Would you slow down, please?
Example Output: C

Example Input: M: Good morning, Ann. ,F: Good morning, Mister Jones. ,M: How about a cup of coffee? ,F: I will make it now. ,M: And can you tell me what meetings I have this week? ,F: I will bring the diary. OK, this afternoon you have a meeting with your accountant at 5:00 PM. On Wednesday, you are going to London. Don't forget your train leaves at 9:30 AM. ,M: OK, what time is my meeting in London? ,F: At 11:30 AM. And on Thursday, Miss Von wants to talk to you.
(A) M: Thanks, you are a good student. (B) M: Thanks. I am such an excellent secretary. (C) M: Thanks, you are such an excellent secretary. (D) M: I am afraid I did not quite catch what you were saying. Please repeat it.
Example Output:
C