Instructions: 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: M: Today I'm talking to Marta Dancedand who runs her own mobile restaurant. Marta, how did you get into the restaurant business? ,F: Well, I learned to cook at college. I always wanted to open my own restaurant, but had no money so I got a job as a chef. I had all sorts of ideas for new dishes, which the staff thought would sell but the boss wasn't interested. That's when a friend told me about the mobile restaurant idea. It sounded great. ,M: Tell us about it. ,F: Well, it works like this. You decide on a menu. Obviously you have to be able to cook. Then you advertise it so people can book a meal. The most amazing thing is all the advertising is done through websites. People set up tables in their sitting room or in a city car park, an empty factory, anywhere in fact and because you know how many people you're cooking for, food doesn't get wasted.
(A) M: I didn’t hear you. Please could you tell me again? (B) M: I understand. Customers decide the menu and all is advertised online. (C) M: So you can hire someone to cook and the food is never thrown away, isn't it? (D) M: You mean that menus can be easily changed by customers, right?
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
A