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: What a nice garden! Look at these flowers. ,F: That would be a good shot. Can you take my picture here, dear? Please try to get the garden in the frame as well. ,M: Alright. Would you please stand closer to the flowers? Good. Smile. Say cheese. OK, got it. That's terrific. ,F: Thanks. Could you take one more from this angle? ,M: No problem. Got it! ,F: Now let's take one together. ,M: Do you know how to set it to take a picture of the 2 of us? ,F: Let me see. We just push this button. OK, come here! ,M: OK. Here I come! ,F: Cheese! ,M: Did it come out? ,F: Yes, but it's a little dark. ,M: Never mind. Let's go to the falls and try again. ,F: OK, let's go.
(A) M: Ok, you stand in front of the garden. I'll take a picture of you (B) M: I am afraid I did not quite catch what you were saying. Please repeat it. (C) M: Ah! Stand near the falls. It's perfect for taking pictures. (D) M: Please stand near the falls, I'll take the third photo of you.

Ex Output:
C


Ex Input:
F: You looked tired today, John. What's wrong? ,M: I have so many things to do. I am so stressed out. ,F: Well, just relax. You told me that you have one day off today. You said you would take our daughter to the park.
(A) M: I will take our son to the park. (B) M: Excuse me, could you repeat the question? (C) M: I will take our daughter to the zoo. (D) M: Honey. I don't know how to deal with my stress.

Ex Output:
D


Ex Input:
M: Don't worry about your train sickness. I have brought some tablets with me that prevent train sickness. Here, take this one now. I'm sure you'll be alright on the train. ,F: It's very kind of you. By the way where is the dining car? ,M: The dining car is next to the sleeping car. Shall we eat our meals in the dining car? ,F: The attendant will bring some food here. But since the dining car is next to this carriage, we may just as well eat there. ,M: That's alright. How beautiful the scenery is. Look at the vast stretches of green fields. ,F: But it looks lovely only at this time of the year. It's rather dull and lonely in winter. ,M: That's why I prefer to travel in the summer and autumn. ,F: Me, too. I love summer, though it is hot.
(A) M: Really? You don't love summer, so you travel in winter now? (B) M: Yeah, I also don't  prefer to travel in the summer or autumn, so I travel in spring now. (C) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (D) M: Really? You love summer because it's not hot? And that's why you travel in summer now?

Ex Output:

C