A suitable title for the passage is （）

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．are trying activities such as bungee jumping
B．are climbing the highest mountains
C．are close to death in sports
D．are looking for adventures such as exploring unknown places

A．quite a few newspapers support extremist groups on the far right and on the far left
B．most daily newspapers attempt to attract Americans with a moderate attitude
C．many papers print columns by well-known journalist with different political and social views
D．many papers are in favor of extremist groups on the far left