Definition: 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.
Input: F: Brand new sunglasses just $80. ,M: Really? They don't look very new. ,F: These are the latest style from Europe. ,M: Anyway I just bought some the other day. ,F: Not like these. OK, just for you. One pair for $70. ,M: Do they come with a guarantee? ,F: What do you need a guarantee for? These are really tough. ,M: I don't know, you can't lower the price at all? ,F: I don't like to do this, but I guess you can have them for $65. ,M: Sorry I'm on a tight budget. ,F: If you buy two, I can let them go for $50 each. ,M: I'm sorry. I'm not interested. I only want one pair. ,F: Alright one pair for $55.
(A) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) M: Ok, I will pay $55 for them. (C) M: Ok, since they are the leading brand, I will pay $55 for two of them. (D) M: Ok, although $50 is still a little high, I will pay because they have a guarantee.

B