Which of the following sentence is irrelevant to the sentence “Different people spend their weekends in different ways”? （ ）
选项：

A:Some enjoy going to the mountains to hike, ski or just relax.
B:Water skiing is much more difficult than snow skiing.
C:Others prefer going to the beach to enjoy the seashore activities and to get a suntan.
D:Still others like to relax by staying home and reading a good book.