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: It's wonderful after the rain. The Sky is clear and the air is so fresh. ,F: You bet. Let's go for a walk outside on this fine day.
(A) M: Definitely, let's go out and enjoy the sunshine now. (B) M: It's been sunny for days. I feel really hot. (C) M: It's cloudy. I'd rather stay at home. (D) M: I am afraid I did not quite catch what you were saying. Please repeat it.

Ex Output:
A

Ex Input:
F: I notice an article in the newspaper about the problem of rapid growth of cities in America. I was wondering do you Americans carry out a birth control policy? Can Americans have as many children as they want? ,M: Yes, sir. We can have as many as we want, but most people decide to have only one or 2, and some people decide not to have any. ,F: Why do they decide not to have any? In the old days, we Chinese always wanted to have as many as possible. Some still do now.
(A) M: I am really sorry, I did not catch that. Would you slow down, please? (B) M: Well, most Americans also decide to have as many children as they can. (C) M: I have no idea. Most Americans decide not to have any children. (D) M: Well, with the birth control policy, most Americans only have one or two children.

Ex Output:
A

Ex Input:
F: Alex, shall I start the packing? ,M: The packing? No, no, don't worry. We may have to change your plan. ,F: Why? ,M: We may not go to Schottland. We may go to wheels or England instead.We can decide after the weather forecast. ,F: OK. Is it time to watch the forecast for tomorrow on TV? ,M: Yes, listen. northern Schottland will be cold and there may be snow somewhere. ,F: In the north of England, it will be a wet day and rain will move into Wales during the afternoon. ,M: Eastern England will be generally dry and it will be a bright clear day with sunshine, but it may rain during the evening. ,F: In the southwest, it may be foggy during the morning, but the afternoon will be clear and may be windy later in the day.
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: Northern England will be foggy tomorrow. But northern Scotland will be warm. (C) M: Southwestern England will be clear tomorrow afternoon. But there may be rainy later in the day. (D) M: Southwestern England will be clear tomorrow afternoon.That will be fine.

Ex Output:
D