Which of the Following Is Most Accurate

Which of the following is most accurate?

A) Most economic historians believe that the policies of the federal government were an important cause of the Great Depression.
B) Most economic historians believe rapid increase in inequality caused the Great Depression.
C) The US experienced a relative absence of cyclical unemployment and was relatively free from the mass joblessness that had previously plagued the nation.
D) More homogenous communities chose to have higher taxes to fund schools.