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: 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?

Output: C


Input: Consider Input: F: Hi, I have a reservation under the name Sally. ,M: Hi, Sally, a room for 12 people at 7:30 PM. Is that right? ,F: Yes, we've got two more people coming, though. Is that OK?
(A) M: OK. That's 12 people in total, that's fine. (B) M: Oh, you'll have 16 people having dinner together. The room will fit. (C) M: I didn’t hear you. Please could you tell me again? (D) M: So you're a group of 14 people. No problem. The room is big enough.

Output: D


Input: Consider Input: M: Have you heard what Fred did last night? ,F: No. Not yet. What happened to him? ,M: I guess he was a little drunk and he had a fight in the car with his girlfriend, while he got so mad at her that he drove his car straight into the front of a drug store. ,F: What do you mean? ,M: I mean he drove inside. The front of the store was completely broken up. Actually I saw it just now as I walked by. It still parked inside the store next to the milk. There, some food all over the car. It's a terrible state. ,F: I'm afraid Fred is in trouble. Where is he now? ,M: I hear he's in the police station. It's lucky no one was hurt.
(A) F: Really? Fred was went to the police station last night and someone was hurt? (B) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) F: Yeah. I'm not afraid Fred is in trouble although he drove into a store and broke it up last night. (D) F: Yeah, it is luck that he's not in the police station. I heard last night he went shopping with his girlfriend.


Output: B