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:
F: Good evening, sir is there anything wrong? ,M: I'm afraid there is, and the service here has been terrible. We had to wait 40 minutes for the soup and then it was stone cold.
(A) F: Sorry. I will serve the soup for you right away. (B) F: I will take a look for you to see why the play hasn't started in the theater. (C) F: Excuse me, could you repeat the question? (D) F: I don't know why the bus hasn't come yet.

Ex Output:
A


Ex Input:
M: Hello, computer consultants. ,F: Hello, I'm interested in the Nova computer. ,M: The basic model or the basic plus? ,F: Which one is more suitable for a small restaurant? ,M: Well, it depends on what you really need. Both of them have the latest and greatest hardware. ,F: Well, we do need a wide range of software. ,M: Then I think you should consider the basic plus.
(A) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) F: Please give me more information about the basics plus model. (C) F: I don't need computer, but you're welcome to our restaurant. (D) F: I'm not interested in Nova, but I want to buy a Supernova one.

Ex Output:
B


Ex 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.

Ex Output:

B