Answer: D. Both countries
Step-by-step explanation:
The options include:
A. neither country
B. the country with lower production costs
C. the country with higher production costs
D. both countries
Comparative advantage occurs when a particular country produces a certain goods based on the fact that it has a lower opportunity cost of its production when compared to the other country. This typically occurs in international trade.
Comparative advantage is beneficial to both countries that are involved as the countries purchase the goods that it doesn't have a comparative advantage in from the other country.