Mass unemployment
One of the most serious economic consequences of the Depression was mass unemployment. Large numbers of men found it nigh impossible to find a job, and so they left their homes and communities to look for work elsewhere. Even then, the best that many could hope for was manual labor or seasonal work.
The city in California would be Sacramento.
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Your answer is (4) influence the price of oil and set production levels
Is there options? If not More Developed countries are more likely to by such as the United States