Answer
c) Domestic production of coffee falls, and Ectenia becomes a coffee importer.
Work Step by Step
If the domestic price falls after opening up to trade, this indicates that prior to trade, Ectenia had a higher domestic price relative to the world price. This means that the Ectenia has a high opportunity cost of production, which demonstrates that it does not have a comparative advantage in the production of coffee. Therefore, Ectenia will be an importer.
