The writer of the article has a（）attitude towards dangerous sports.

A．they have a lot of free time
B．they can go to hospital if they are injured
C．their lives lack excitement
D．they no longer need to hunt for food

A．Dangerous Sports--What and Why
B．The Boredom of Modem Life
C．Bungee Jumping--Is It Really Dangerous
D．The Need for Excitement