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: It's January and it's been raining the whole month. How long does the rainy season last here? ,M: About 4 months. It begins in early November and lasts until February.
(A) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) F: The rainy season will end in November. (C) F: The dry season will end in February. (D) F: The rainy season will end in February.
Example Output: D

Example Input: F: I must leave early tomorrow, so it will be difficult to take you to school in the car. ,M: Oh, my bike is in the repair shop, so I guess I'll have to take a bus.
(A) F: So, you mean your bike is not in the repair shop and you will go to school tomorrow by car? (B) F: Really?  Your car is in the repair shop and you will go to school tomorrow by bus? (C) F: Oh, you mean your bike is in the repair shop and you will go to school tomorrow by bus? (D) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that?
Example Output: C

Example Input: M: Look at this armchair, what do you think? ,F: Oh, I'm not sure I like the design. It's too heavy looking. Is it comfortable? ,M: Try it. ,F: Uhm, It's really comfortable. And I'd like to have something this size. Our old armchair is way too small. This size is perfect. ,M: What do you think of the color? ,F: Well, green isn't my favorite color, but it's better than that terrible brown one we have now. It's OK I guess. But blue would be perfect. ,M: How much is it? ,F: Oh no, it's $999. That's really too expensive. We can't afford it right now. ,M: I know. Why don't we wait till next month for their midyear sale? It might be cheaper then. ,F: Hey, that's a good idea.
(A) M: Ok, since you want ask for a cheaper price, you can buy it later, at that time it will be only $1999. (B) M: Yeah. It's $999 when it's on sale, and you'll get a good deal. (C) M: Do you mean you will buy it right away although it is $1999? (D) M: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that?
Example Output:
D