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: Thank you for calling target.com. My name is Angela, and I'd be happy to assist you today. What is the name on the account? ,M: Mark Sanchez. ,F: Thank you, Mr Sanchez. What's your email address? ,M: It's mark889@gmail.com. ,F: Thank you, how may I help you today? ,M: I ordered some gifts from your website last week, but they haven't arrived yet. They were supposed to be here 2 days ago. ,F: I'm sorry to hear that sir, do you have the order number? ,M: Yes, it's 855321. ,F: One moment, please, alright sir, I think I've discovered what's going on. A couple of items in your order were damaged during transport. We are in the process of shipping your new items, but it could take up to 10 days for you to receive them.
(A) M: I am so excited! You mean it would be delivered this afternoon? (B) M: Why? I don' t understand at all! Helen! Please give me an explanation! (C) M: I'm sorry, I didn't catch that. Would you mind speaking more slowly? (D) M: I was about to cry! I' m so frustrated! How can you lose my things?

Ex Output:
C

Ex Input:
F: Dad, look at this friendship quiz. ,M: Why don't you try it? The first question, how often do you get in touch with your friends? ,F: Hmm... My friends aren't in the same secondary school as me, and I dislike ringing people up. I don't call my friends, even once a week. ,M: That means seldom. Secondly, how many friends can you talk with when you are upset? ,F: Oh, I can't think of any. I usually talk with you or mom when I feel sad. ,M: Poor Susan, you can't rely on us all the time. The last question, your friend wants to talk with you. Where would you have the talk? ,F: Well, we can't talk in the classroom. Maybe I would talk to her in a shopping center. We can talk and shop at the same time.
(A) M: I'm sorry, I didn't catch that. Would you mind speaking more slowly? (B) M: All right. So you talk with your teacher in a shopping center. (C) M: All right. So you only talk with your friend in a classroom. (D) M: All right. So you only talk with your friend in a cafe.

Ex Output:
A

Ex Input:
M: Hello, computer consultants. ,F: Hello, I'm interested in the Nova computer. ,M: The basic model or the basic plus? ,F: Which one is more suitable for a small restaurant? ,M: Well, it depends on what you really need. Both of them have the latest and greatest hardware. ,F: Well, we do need a wide range of software. ,M: Then I think you should consider the basic plus. ,F: Do you supply software? ,M: No, we don't supply any software. But we can recommend suppliers. And there's a training program with both models. We also run special courses for new users. ,F: That sounds impressive.
(A) M: If you buy Nova Basic as I said, your restaurant will run more efficiently. (B) M: Excuse me, could you repeat the question? (C) M: We sell software and you sell computers, so we can collaborate well. (D) M: Your training courses are popular as you know Nova computers well.

Ex Output:
B