According to the author, social psychology should help man to（）

A．because its roots are intellectually western in origin.
B．as a direct response to the great depression.
C．to meet the threat of Adolf Hitler and his policy of mass genocide.
D．because of its pragmatic traditions for dealing with social problems.

A．it is given more resources by the government.
B．more accurate information on its value is available.
C．the government takes over responsibility from the NHS.
D．travelers pay more attention to the advice they get.