The US economy started booming in the 1920s because WWI was just ended/coming to a close and all of the money that was spent on war supplies made companies and workers richer as well the war debt and damage of our alies needing supplies that we gave giving us even more money and prosperity.
Answer:
A)the Treaty of Versailles and economic depression
Explanation:
Two major causes of the rise of dictatorships after World War I was the Treaty of Versailles and economic depression.
There was an increase in dictatorship after World War as a result of the Treaty of Versailles which was an agreement of peace between Nazi Germany and Allied forces and economic depression.
