Answer: A.) Police Violence
Explanation:
In the 1920's, it was caused by high supply with low demand (low prices), high technological prices, the passage of Fordey-McCumber Act caused foreign markets to stop buying American agricultural products
A, Brazil, The immigration and nationality act of 1952 plays called us on the immigration people from Brazil
The source was the land that they owned that they could control the peasants in their feudal system.