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.

Input: Consider Input: F: Can I sit here and wait for the doctor please? ,M: Sure but you may have to wait for a while. ,F: When will the doctor return? ,M: He said he'd be back around 4:30 PM, so an hour from now.
(A) F: I am afraid I did not quite catch what you were saying. Please repeat it. (B) F: You said he will back at 3:30 pm? (C) F: Okay, now is 3:30 pm and I will go to the mall first and be back one hour later. (D) F: He must be back as it's 4:30 pm now.

Output: C


Input: Consider Input: F: Adam, I heard you want to get in shape. Why not join the club I am in? ,M: Is it far from our neighborhood? ,F: No, it's just 10 minutes away from here by bike. ,M: What do you do there? ,F: Well, I often start out running for about half an hour and then I get in the swimming pool for an hour. ,M: I really like swimming. It's a good way to lose weight, isn't it? ,F: Oh, it certainly is. I was 135 pounds when I joined the club. Now I weigh just 120 pounds, and I'm sure I'll manage to lose another 10 pounds by the end of July. ,M: That's amazing. Perhaps I'll go and have a look at your club tonight.
(A) F: Are you going to lose weight by cycling? The club is only 10 minutes' walk from here. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: Although the club is 30 minutes away from here by bike, why are you going to lose weight by running? (D) F: Great, then you're probably going to lose weight by swimming.

Output: D


Input: Consider Input: F: Look at that large field of corn, and there is a farm was a beautiful houses on it! ,M: You can see the beauty of the farm on the train.
(A) F: Who do you think are the owners of these beautiful houses? (B) F: It's a pity that we can't see this farm on the train. (C) F: I am really sorry, I did not catch that. Would you slow down, please? (D) F: This is the first time that I see such a big corn field.


Output: C