Answer:
a. increasingly migrated out of rural areas.
e. decreased their output of crops, due to declining demand on the American and overseas markets.
Explanation:
During the 1920s many American farmers faced hardships, the prices of crops were falling they needed to purchase expensive machinery but did not have money for that. The World was recovering from WWI and the world demand for products was not high, the prices of commodities dropped. This pushed many farmers to migrate out of rural areas and move to bigger cities looking for a job in factories.