The Figure Given Below Shows the Domestic Demand (D_d) and Supply

The figure given below shows the domestic demand (D_d) and supply (S_d) curves of mopeds in a country before an import quota is imposed by the government. After the imposition of quota, the total available supply curve becomes S_d + Q_Q. After the quota is imposed, the domestic consumers:

A) gain $7.5 million.
B) lose $21.25 million.
C) lose $82.5 million.
D) gain $97.75 million.