The correct answer is C) Free Trade.
Compared to protectionism an opposing goal of economic foreign policy is free trade.
Free trade is the opposite of protectionism. Free trade welcomes the exchange of products and services among countries, eliminating or reducing the imports and exports tariffs, and eliminating special tariffs to the products.
The best example of Free Trade in the world is the Free Trade Agreement between Mexico, Canada, and the United States. This free trade agreement has helped the three countries to create more jobs and to improve their economies.