In America, the Onset of the Great Depression in 1930

In America, the onset of the Great Depression in 1930 caused

A) people to blame, at first, the economic system, not their own personal failings for their catastrophic economic and social problems.
B) a decade-long decline in the birthrate.
C) an increase of foreign investment because prices were so low.
D) a shift from Wall Street investment to investment in small, local businesses.
E) a growing acceptance by business and Wall Street of the need for federal regulation of financial markets and business practices.