M: Let's go and have lunch together. W: OK! M: By the way, I'm thinking of going to New Zealand around Christmas for three weeks. It's such a beautiful country. I've never been there before. W: Have you booked the flight? M: Not yet. I'm planning to book my flight in two weeks' time W: Book your flight right now. M: Why? W: Because the longer you leave it, the more expensive it will be. As a matter of fact, the prices may double at Christmas time. New Zealanders usually go home for Christmas. M: Then I'm going to book my flight tomorrow morning., Question: What can we learn about flights to New Zealand at Christmas time? (A) They require early booking. (B) They can be twice as expensive. (C) They are on special offer.
(B) They can be twice as expensive.