Answer:
c. export airplanes to Japan and import televisions from Japan.
Step-by-step explanation:
The comparative advantage refers to the situation in which a country is more efficient in the production of a good than the other countries and if each country specializes in the product that they can produce more efficiently there is an increase in the economic welfare. The comparative advantage also refers to the fact that one country can be more efficient at the production of all the products but in that case, countries will still benefit by specilizing in what they can produce at a lower opportunity cost and engage in trade. Because of that, the United States should produce airplines and Japan televisions and the answer is that the U.S. should export airplanes to Japan and import televisions from Japan.