During the 1920s, the Federal Government Was Expected to Play

During the 1920s, the federal government was expected to play a small role in our lives. The fact that there was a dramatic change in expectations from the 1930s to the 1970s suggests that

A) the Marxist view of power is probably the most accurate.
B) no simple theory of politics is likely to explain both sets of expectations.
C) Weber's speculations concerning bureaucracy were largely correct.
D) the assumptions of both Marx and C. Wright Mills concerning power were wildly incorrect.
E) elite theories do not adequately take into account the self-interested nature of politics.