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: Excuse me, how can I find the European paintings? ,F: Take the lift to the third floor and turn right. There just next to the black and white photography show. ,M: Got it. Thank you.
(A) F: Well, we are on the ground floor, so you could take the lift straight to where you want to go. (B) F: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) F:  The Asian paintings you are looking for is just next to where we are now,which means it is next to the European paintings. (D) F: You know we are at the black and white photo show now, so you just take the lift to the forth floor and turn left you will find what you are looking for.

Ex Output:
A


Ex Input:
F: You seem to have caught a cold. ,M: I see. Should I have an injection or take some medicine? ,F: Neither. But you'd better drink more water every day. It will do you good.
(A) M: Excuse me, could you repeat the question? (B) M: Yeah. I should take some medicine. (C) M: Yeah. I should drink more water and go to the hospital then. (D) M: Yeah. I should drink more water.

Ex Output:
D


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