Who believed that man can influence social change for the good of society

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．is for the government to decide.
B．should be left to specialist hospitals.
C．can be left to travel companies.
D．has no clear and simple answer.