Given the task definition and input, reply with output. In this task, you will be shown a conversation and a question. You need to answer the question and choose the correct option based on the conversation. "W" and "M" in the conversations stand for "woman" and "man".

W: Hello, Supertravel. How can I help you? M: I'd like some information about flights to Italy. W: Where do you want to go? M: Rome. I want to leave on Tuesday the 6th of May and come back on Saturday the 10th. W: It'll be much cheaper if you stay the Saturday night and come back on Sunday the 11th. M: OK then, I'll go from the 6th to the 11th. I'd like to fly early in the morning if possible. W: There's a flight leaving London at 8:30 on the 6th, getting to Rome at 12:00, and then for the return flight, there's one leaving at 9:00 getting to London at 12:30. Is that OK? M: Yes, that's fine. Did you say I'll get to Rome at 12:30 on the 6th of May? W: No, at 12:00. You leave at 8:30. M: And the flight back gets in at 12:30 on the 11th? W: That's right. M: How much does it cost? W: 195. M: OK, that's fine. I'd like to book a return ticket for those flights. W: Can I have your name please? M: Yes, Robert Brown. W: And your credit card details. M: Yes, it's a Visa Card..., Question: How long will the flight take? (A) Two and a half hours. (B) Three hours. (C) Three and a half hours.

(C) Three and a half hours.