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:
M: Hello, 75610. ,F: Hello, Dennis, are you still coming to lunch on Saturday? ,M: Well, you know, I'm having a party in the evening. I'm going shopping for it in the morning, so there isn't much time. ,F: Never mind. Well, come to tea on Sunday. ,M: And there's a special TV program I want to watch. I think it's on at about 5:30. ,F: That's alright. Come and watch it here. I'll make one of my chocolate cakes. ,M: Who can resist your cakes? Fine, tea on Sunday then.
(A) F: You will make cake for me? That's wonderful. (B) F: I'm sorry, I didn't understand. Could you repeat a little louder, please? (C) F: Nice! Come to tea with us on Sunday and bring your cake. (D) F: Great! Come to have tea with us on Sunday.

Ex Output:
D

Ex Input:
M: Want to go to lunch today? That new restaurant across from the office is supposed to be good. ,F: I can't. I brought my own lunch today because the boss told me to finish some writing. I need to stay in the office. ,M: Alright. Maybe next time.
(A) F: Sure. I'll go with you the next time at lunch time. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: I need to take out my food, thank you. (D) F: Sure. I will finish my work during lunch time.

Ex Output:
A