The Graph Shown Demonstrates the Domestic Demand and Supply for a Good

The graph shown demonstrates the domestic demand and supply for a good, as well as a quota and the world price for that good. If the economy opens itself to free trade, producer surplus will:

A) decrease to area I.
B) decrease to areas E + I.
C) increase to areas E + I.
D) increase to areas A + B + C + D + E + F + G + H.