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: 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?

Ex Output:
C

Ex Input:
M: I'd like a lot of different bands. I guess my favorite one is Green Day. Do you like them? ,F: No, I don't. I guess they have some good songs but they're very noisy.
(A) M: I'm sorry, I didn't catch that. Would you mind speaking more slowly? (B) M: What's your hobby in your spare time? (C) M: Why do you like these songs? (D) M: Oh, you like Green Day band best. That's great. I like them, too.

Ex Output:
A

Ex Input:
M: You don't look very happy. What seems to be the problem? ,F: I've got to write a long composition for my English class and I just can't come up with any idea and it's due tomorrow. ,M: That shouldn't be too difficult. Remember those pictures you were showing me last week. The ones from your voyage last winter. ,F: Sure, I've got them here some place. ,M: Why don't you write about your impressions of the pyramids in Egypt and camel ride you took? ,F: That sounds like a good idea. I can also tell about our visit to North Africa, the Holy Land and all of the historical places we visited. ,M: Well, now that you're feeling better about this. I think I'll be on my way. I've got to finish my composition too.
(A) F: Yes, you are right. Maybe I should take a trip as you suggested. (B) F: Yes, I should try to get organized my sister's trip. And then, it can be my own composition. (C) F: I'm sorry, I don't understand. Could you say it again? (D) F: Your advice is really good. I should write about my trip.

Ex Output:
D