The correct answer is C, Destroying their Agricultural Products.
The Farmers of the South suffered more from the Great Depression, as farming was the main industry in South America. During world War 1 farmers worked hard to produce the crop that was sufficient for livestock. Therefore increasing production resulted in the price fall of the commodities. During this time ( when prices fell), farmers even produced more to pay their debts and this increase in the supply of the crop led the price fall so low that many of the farmers went bankrupt and even lost their farms. To raise the prices of the crops farmers banded together like a Labor Union, however, this effort had no effect on the prices. Therefore farmers started Destroying their agricultural products to increase the prices.
