Questions 21 and 22 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.

According to the Insurance Institute, how many of car head restraints fail to stop rear end crashes

A．Environment ministers of developed countries.
B．Environment ministers of developing countries.
C．Environment ministers of G8.
D．Environment ministers of GS, developed countries, and developing countries.

A．People are too lazy to do exercise.
B．People are more reliable on modem technology than on themselves.
C．People usually give up formal exercise.
D．People are too busy with their work and family.