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 tariff and the world price for that good. If this economy was previously open to free trade, the introduction of the tariff will cause producers to:

A) lose the surplus in areas H + I + J + K + L.
B) gain the surplus in areas H + I + J + K + L.
C) lose the surplus in area H.
D) gain the surplus in area H.