Answer:
Economic, political, and social issues merge with circumstances of modernization to make people want to migrate from rural to urban areas.
Explanation:
Need more information please
The causes of the Economic Boom of the 1920s were the Republican government's policies of Isolationism and Protectionism, the Mellon Plan, the Assembly line and the mass production of consumer goods such as the Ford Model T Automobile and luxury labor saving devices and access to easy credit on installment plans.
I think Ur answer might be D
