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:
M: Hello, Clark Cycle here. How can I help you? ,F: Oh, hello. I saw your ad in the local paper and I'm wondering what kinds of bikes you have, and what your prices are like? ,M: Well, we hire out 3 main types of machine, electric touring and mountain bikes. Are you likely to be riding off-road, do you think? ,F: No, I'll probably be sticking to roads. So, we're touring bike would be best. ,M: Right, well the rate will be 50 pounds for a week or 14 pounds per day. ,F: So it's a lot cheaper to rent by the week. Is there anything else I'd have to pay? ,M: Well, for another 5 pounds, we can supply lightweight bags. There is no charge for things like a pump or for a lock. It's a good strong one, just make sure you don't lose the key.
(A) F: Yeah, it's not a good strong one and cannot make sure I don't lose the key. And you mean the lock needs extra charge, right? (B) F: Really? For another 4 pounds, you can supply lightweight bags for me? So, the bag needs extra charge? (C) F: For another 5 pounds, you can supply lightweight bags for me? So, the bag needs extra charge? (D) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?

Ex Output:
C


Ex Input:
F: Good morning Can I help you? ,M: Yes, I need some directions. ,F: Sure. What are you looking for? ,M: Well, first of all I'm looking for the Hard Rock Cafe. How far is it from here? Need I take a taxi? ,F: Oh, it's just about 5 minutes walk from here. Just walk out of the hotel and turn right. It's right across from the National Bank.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M:  OK. Since the Starbucks Coffee is close to the bank, I will go there by bike. (C) M:  Thanks. It seems that the cafe is far from the hotel, I will take a taxi to go there. (D) M:  OK, I see. I will walk out the hotel and turn right to find the Hard Rock Cafe.

Ex Output:
D


Ex Input:
F: Louis, how is your knee today? Have you seen a doctor? ,M: I feel much better today. I went to the doctor and he told me it was not serious. I should be OK for Saturday's basketball game.
(A) F: Enjoy your Saturday's basketball game, but remember to pay close attention to your knees. (B) F: Have a good time playing football on Saturday. (C) F: At least you would play catcher in your Saturday baseball game, so you don't have to run much. (D) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?

Ex Output:

A