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: F: Charlie, do you know a restaurant called Bravo? ,M: Bravo? I know the name, but I'm not sure where it is. ,F: It's on George Street. The food there is excellent.
(A) M: Oh, I'm sure where it is. Let's talk more about its dish. (B) M: Excuse me, could you repeat the question? (C) M: Oh, really? It is not on George Street? Let's talk more about this street. (D) M: Yeah, the food there is excellent. Let's talk more about this restaruant.
Example Output: D

Example Input: M: Do you think people's moods are affected by the climate they live in? ,F: Well, I think there's certainly something in it. Because when the weather is hot, I easily lose my temper, but when it's cooler I feel much calmer. And if it's raining, I always feel sad.
(A) M: Why do you feel angry when it's hot? (B) M: Excuse me, could you repeat the question? (C) M: Why do you feel sad when it's hot? (D) M: Why don't you feel angry but sad when it's hot?
Example Output: A

Example Input: F: What's your opinion on cleaning up the air? ,M: I think we should drive less. ,F: Do you mean we have to stay home? ,M: No, I mean, we can reduce air pollution by using public transportation.
(A) F: I didn’t hear you. Please could you tell me again? (B) F: Let's enjoy the fresh air. (C) F: Reducing air pollution is not belongs to us. This is the responsibility of the government. (D) F: We need do something to reduce are pollution.
Example Output:
D