Final answer:
Migrants were attracted to California in the 1930s by the promise of fruit-picking jobs due to the Great Depression and economic hardships.
Step-by-step explanation:
The best description of what drew migrants to California in the 1930s is the promise of fruit-picking jobs. The Great Depression in the 1930s resulted in widespread unemployment and economic hardships across the United States. Many people, especially those from the Midwest, were attracted to California by the opportunity to find work in the agricultural industry, particularly in fruit picking. California's climate and fertile land made it a desirable destination for migrant workers seeking employment.
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