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: How much is the cap? ,F: 8 yuan for 1, 14 yuan for 2, and 18 yuan for 3. ,M: Then I'll take 3.
(A) F: 8 yuan, please. (B) F: OK. These four caps cost 18 yuan. (C) F: 14 yuan, please. (D) F: I am afraid I did not quite catch what you were saying. Please repeat it.
Example Output: D

Example Input: F: What about taking a tour around Cambridge today? ,M: I did that with a friend yesterday. ,F: But didn't you say you would go to the London Eye yesterday? ,M: My friend had already been there, so I changed my plan. Today I want to see some modern art work. ,F: If so, you can go to Tate Modern. It's a museum with a collection of international artwork from the nineteen hundreds. ,M: Do many people visit it? ,F: Yes, it's very popular. But don't worry, it's usually not crowded on weekdays. If you go tomorrow though, there're maybe a lot of people.
(A) M: You are right. I should go there today on Monday, although there might be crowded. (B) M: I am afraid I did not quite catch what you were saying. Please repeat it. (C) M: I will go there tomorrow on Friday. (D) M: I should go there today on Saturday to avoid the crowd.
Example Output: B

Example Input: M: Look, mom has left a note with housework for us to do while she and dad are away this weekend. ,F: Let's see. Tidy up the garage and clean up the backyard. ,M: She doesn't say which we should do first. ,F: Hey, we're not robots. We can make our own plan as long as everything gets done. Read the weather report in the newspaper. ,M: Em, sunny today, cloudy tonight, probably heavy rain tomorrow. Well, that makes it easy. We work outside today and inside tomorrow.
(A) F: Cloudy tonight? That's not a good sign for tomorrow. (B) F: I'm sorry, I don't understand. Could you say it again? (C) F: Although it is cloudy tonight, I believe tomorrow will be a sunny day. (D) F: It is a pity that it will rain tonight.
Example Output:
A