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: Hello, China Travel Agency. Can I help you? ,M: Yes, I'd like to travel to London. So I want to make a reservation for me on May fourth. ,F: Just a moment, please. I'm sorry, but the flights are fully booked on that day. The next available flight is on May fifth. They have 2 flights: one at 9:30 AM and the other at 2:00 PM. Both flights have seats available. ,M: That's great. I'd like to take the first available flight. What's the fair, please? ,F: 2250 yuan. ,M: Here is 2300 yuan.
(A) F: Okay, as you want to take the last available flight, you have to pay 2,300 yuan in total. (B) F: Really? You mean here is 3300 yuan? Oh, actually you just have to pay 2,250 yuan in total. (C) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (D) F: Well, as you want to travel to London and take the first available flight, you have to pay 2,350 yuan in total.

Ex Output:
C


Ex Input:
M: So, Gilda. I'm sure we both have to deal with homesickness, because we're so far away from our own country. ,F: Yes, it's very difficult. In special seasons like Christmas or during the Holy Week, it is something that we celebrate a lot and I really feel homesick. ,M: How do you deal with homesickness? ,F: When I feel homesick, I never stay at home alone. One thing I do is that I always try to go for things in the neighborhood. So what do the locals do? Is there anything interesting? And it's a sort of adventure because you're doing something new, so you're kind of replacing something that you used to do by something new. So, in a way, it's nice dealing with homesickness. ,M: Yeah. ,F: What about you? ,M: Well, that's what I was going to say. You said replacing and I also focus myself on other activities, such as playing golf, swimming and watching TV. But what I like best is to go hiking with the friends I've made and we talk a lot. ,F: You are really outgoing. There're a lot of delicious foods to enjoy. Delicious foods can make you forget unhappy things. ,M: Yeah, I couldn't agree more. I also do that when I'm feeling homesick. Maybe next time we can go out and enjoy some foods together.
(A) F: Good idea. We can chat with each other when we feel homesick. (B) F: Good idea. We can have meals together with family members when we feel homesick. (C) F: Good idea. We can have meals together when we feel homesick. (D) F: I’m sorry, I don’t understand. Could you say it again?

Ex Output:
C


Ex Input:
M: Hi grandma, I'm calling to say happy birthday, I hope you're having a good day. ,F: Thank you. Michael. It's great to hear from you. It's been awhile since we've talked. ,M: I know grandma. I'm sorry I've been so busy with school and activities lately. I'm captain of the basketball team this year and I'm also applying to colleges for next fall. ,F: Oh, Michael, I'm so proud of you, you're a very accomplished young man. Do you know where you want to go to college? ,M: I really want to go to the University of Southern California, but they might not let me in. It's a very good school and it's very difficult to be accepted there. ,F: Well, I'm sure they will take you, honey. You're a special young man. You've really made your grandfather and me so proud.
(A) M: My schedule is too busy! I really want to go to the University of Southern California. (B) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) M: Aunt Helen, I hope you can come to my birthday party to celebrate my birthday! (D) M: Oh my gosh! Let me tell you, my friend, the busy schedule drives me crazy!

Ex Output:

A