It started in 1954 and ended n 1974
This would be immigration.
Answer:
Overproduction was one of the main causes because people were producing so many resources that the demand for them went down. Because there was no longer high demand, prices went down which ultimately weakened the economy of the United States.
Explanation:
The united states expanded during the progressive era by limiting trade with other nations.
<h3>What do you mean by progressive era?</h3>
In US history, the period from the 1890s to 1920 is referred to as the progressive era, an era of intense social and political reforms that aimed at making progress towards a better society.
Federal immigration policies in the Progressive era includes Immigration act limited immigration and excluded all Asian immigrants.
Therefore, B is the correct option.
Learn more about the Progressive era here:
brainly.com/question/17162211
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