Answer:
A. Rich and educated
Explanation:
Their ideology was "Agrarianism, American nationalism, Anti-clericalism, Jeffersonianism, Liberalism, Classical liberalism, Populism, Republicanism", and these are the things backed by (of the four options) the rich and educated.
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The Dust Bowl, also known as the Dirty Thirties, was a period of severe dust storms that greatly damaged the ecology and agriculture of the US and Canadian prairies during the 1930s; severe drought and a failure to apply dryland farming methods to prevent wind erosion (the Aeolian processes) caused the phenomenon.
False dictatorships exercise full authority over the people such as Stalin who controlled most aspects of life including food distribution <span />
I believe the answer is 30%