Personal choices are more significant than ______ factors as to influence the development of health-related behaviors.

A．In 1177.
B．In 1315.
C．In the 16th century.
D．In the 17(上标)th century.

A．Choosing journalism as a career.
B．People’s reactions to a school play.
C．How to take good photographs.
D．The experiences of the director of a school play.