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: Hamilton High School, can I help you? ,F: Yes, I have some questions to ask. My son hopes to study in your school. ,M: Welcome. I am glad to help you. ,F: Thanks. We just knew about the school yesterday. What if I miss the application deadline? ,M: You can still apply as a "late". Your application will be given a number. We will take students in number order. ,F: Does my child get transportation? ,M: If you live more than 3 miles, 3 miles included, away from our school, your son can qualify for transportation. ,F: How can I reach my son's teacher? ,M: You can leave a message in the office at 310-280-1501. You can also send them an email. All emails are listed on our website. ,F: What if the teacher doesn't get back to me? ,M: If there is no response, please call the director at 310-280-1452. ,F: My child is into music. Can he continue to develop his interest?
(A) M: Yes, and the director's telephone number is 310-280-1452. (B) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) M: Yes, and the tutor's telephone number is 310-280-1452. (D) M: Yes, and the director's telephone number is 310-280-1501.

Ex Output:
C


Ex Input:
M: Would you consider buying a self-driving car? ,F: I don't know. I guess I'd have to research a bit more about them before making that decision. ,M: It will probably be a while before we are able to buy them anyway. We might be seeing self-driving trucks on the road pretty soon, though. Google wants to change the commercial trucking industry. Right now, there are over 3 million truck drivers in the US, so adding self-driving trucks would likely take away a lot of jobs. But many drivers might still be able to accompany their trucks and get a full night's sleep in the process. ,F: Truck drivers cause a lot of accidents on the freeway, so I think I'd like to see self-driving trucks. It would make me feel safer on the road. ,M: Really? I think it might make me feel less safe. A human driver is much more likely to react quickly to something unexpected.
(A) F: I am not agree with you, I don't think they are safer. (B) F: I am really sorry, I did not catch that. Would you slow down, please? (C) F: I am not excited by their speed because I think they are not safe at all. (D) F: Are you serious? I don't understand why you feel scared by them.

Ex Output:
D


Ex Input:
M: What's the postage on this letter to Mexico please? ,F: How would you like to send it? ,M: By registered airmail. ,F: $0.90 please. And please write down the postal code in the mailing address, anything else? ,M: Yes, I'd like 6 postcards and 1,050 cent stamps please. ,F: All right, here you are. ,M: And this packages for London. Will you wait for me? ,F: Yes, of course. This package is 10 grams overweight, you'll have to pay $0.50 extra for the overweight.
(A) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (B) M: OK. Please send the letter to the UK. (C) M: OK. Please send the package to the US. (D) M: OK. Please send the package to the UK.

Ex Output:

D