[单项选择]In the 1920s demand for American farm products fell, as European countries began to recover from World War I and instituted austerity(紧缩) programs to reduce their imports. The result was a sharp drop infarm prices. This period was more disastrous for farmers than earlier times had been, because farmers were no longer self-sufficient. They were paying for machinery, seed, and fertilizer, and they were also buying consumer goods. The prices of the items farmers bought remained constant, while prices they received for their products fell. These developments were made worse by the Great Depression, which began in 1929 and extended throughout the 1930s.
In 1929, under President Herbert Hoover, the Federal Farm Board was organized. It established the principle of direct interference with supply and demand, and it represented the first national commitment to provide greater economic stability for farmers.
President Hoover’s successor attached even more importance to this problem. On
A. to increase farm production
B. to establish agricultural laws
C. to prevent farmers from going bankrupt
D. to promote the mechanization of agriculture