听力原文：Man: We always start our vacation the first week of August, and we spend the whol

e month out of town. We've been doing this for years.

Woman: You're lucky you can take such a nice long vacation. Two or three weeks really isn't enough, is it？

Man: No, it isn't. We're renting a house by the lake this time. I'm really looking forward to swimming everyday.

Woman: Well, to each his own, I guess. I like to spend my vacations traveling to different cities. I like to be in a different place each day.

Man: I find it more relaxing to stay in just one place. I remember when I was young, we always spent vacations at the lake. That's why I like to go there now.

How long is the man's vacation？

A．One week.

B．Two weeks.

C．Three weeks.

D．Four weeks.