The cause of the great depression is buying on margin. Thus the correct answer is C.
What is Great Depression?
The 1929 stock market crash resulted in the Great Depression, which was eventually made worse by the Dust Bowl of the 1930s. This was the economic downturn that affected people's financial stability.
With the New Deal policies, President Franklin D. Roosevelt attempted to address the economic crisis and end the effects of the great depression.
When the buyer only contributes a little number of funds and the remaining funds will be contributed or borrowed from the broker, the condition is referred to as buying stocks on a margin.
Learn more about the Great depression, here:
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