______ the importance of wearing seat belts while driving.

A．medical decisions for old people should be left to the doctors
B．old people can enjoy a happy life only if they are very rich
C．the opinion that we should try every means possible to save old people is doubtful
D．it is always morally right to treat old people and push off death

A．health and safety are more important than personal freedom
B．personal freedom is more important than health and safety
C．old people should keep their rooms clean
D．one should not take risks dealing with old people