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: Tom, the cases are too heavy. I think we should take a taxi to the station. ,M: Not at this hour. Look at the traffic. It's moving very slowly. We can get there just as quickly on foot. ,F: Well, I can't carry this case any farther. ,M: Alright, let me take it then. The cases aren't that heavy. ,F: Don't be silly. They're heavier than you thought, especially when you carry them for some time. ,M: Hmm, perhaps it isn't a bad idea. ,F: What is not a bad idea? What do you mean? ,M: Taxi, taxi!
(A) F: As you refused taxi and the case isn't heavy, let's walk. (B) F: Though the case isn't heavy at all, it's good to take taxi. (C) F: Thanks god, you finally agree to call a taxi. Let's wait here. (D) F: I’m sorry, I don’t understand. Could you say it again?
Example Output: C

Example Input: M: Why do you have an umbrella with you? It's not supposed to rain today, is it? ,F: No, but it's supposed to be very hot. I'll use this umbrella to protect myself from the sun as soon as these clouds go away. ,M: I've never heard of using an umbrella for protection from the sun. ,F: Did you know that the Chinese invented the umbrella, and that it's first use was for protection against the sun, not the rain? ,M: I had no idea, you must get sunburned easily, huh? ,F: Oh, absolutely. I always get super red if I haven't put on sun cream.
(A) M: Do you never put on sunscreen because you are not easy to get sunburn? (B) M: Since you are so easy to get sunburned, why don't you bring an umbrella? (C) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) M: You don't even know the first use of umbrella. No wonder you don't have an umbrella.
Example Output: C

Example Input: M: Let's meet at 20 to 5. ,F: Well, could we make it 20 past 5? ,M: That's a bit late for me. I could manage 10 past. ,F: OK, see you then.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: That would be great. Make it 5:10. (C) M: Since you want 10 past 5, let's meet then. (D) M: Sure, 5:40 is ok.
Example Output:
B