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: M: Hello, Barbara. Welcome back. You look great. ,F: Rod, it's lovely to see you again. ,M: How was your trip? ,F: Fun, but tiring. Milan was interesting. It's bigger than I expected, noisier and dirtier too. ,M: And Florence? What did you think of Florence? ,F: Well, I didn't go there. Have you been there? ,M: No, I've never been to Italy. I'd really like to go to Rome. Well, the cars in the car park. Is this all your luggage? ,F: Yes, but the suitcase is very heavy. ,M: Barbara, what's in it? Books or stones? ,F: Just 20 pairs of shoes.
(A) M: So you are taking 20 shoes to Milan now? (B) M: Why do you take so many shoes? (C) M: Why do you take stones to travel? (D) M: I’m sorry, I don’t understand. Could you say it again?
Example Output: B

Example Input: M: Mom? ,F: What are you doing here down at the beach? I thought you said you were going to buy some things for school? ,M: Uh, I did buy some things. ,F: Well, what did you buy? What do you have in your backpack? ,M: Let's see, I have 3 notebooks, 5 pencils, 2 erasers and...
(A) F: Why did you buy 2 notebooks and 5 pencils? (B) F: Why did you buy 3 notebooks ? (C) F: Why did you buy 3 notebooks and 5 pencils? (D) F: I am really sorry, I did not catch that. Would you slow down, please?
Example Output: B

Example 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?
Example Output:
C