Under the Deficiency Payments System, Which Was Used to Subsidize

Under the deficiency payments system, which was used to subsidize grain production,

A) the government purchased all surplus grain and destroys it.
B) deficiency payments were increased when farmers cultivated their land more intensively.
C) farmers were required reduce cultivated acreage by 10 percent.
D) farmers had a greater incentive to engage in beneficial crop rotation.