The Following Image Shows the Market for Wheat for the Country

The following image shows the market for wheat for the country of Palatino.S^D is the domestic supply of wheat,and D^D is the domestic demand for wheat.Suppose the world price of wheat is $9 per bushel of wheat.Suppose a specific tariff of $6 is imposed on each bushel of wheat imported.Government revenue from the tariff equals:

A) $45,000.
B) $3,000,000.
C) $1,800,000.
D) $900,000.
E) $50,000.