Suppose that the government has been supporting the price of corn. It's free market price is $2.50 per bushel, but the govt. has been setting a support price of $3.50 per bushel. Which of the following are ways that the government might try to reduce the size of the corn surplus?
A: Decrease the support price
B: Institute an acreage allotment program
C: Decrease demand by taxing corn purchases
D: Raise the support price.