-The Above Figure Shows the Domestic Market for Wheat

-The above figure shows the domestic market for wheat.Suppose this market is isolated from global competition and the government intervenes by setting a support price of $15 a ton.To keep the price at this level,the government will ________ million tons of wheat.

A) purchase 300
B) sell 400
C) purchase 100
D) purchase 250
E) sell 300