A.
Comparative advantage is when a country can produce a good at a lower cost in terms of other goods or when a country has a lower opportunity cost of production.
B.
Comparative advantage is when a country can produce a good at a higher cost in terms of other goods
C.
Comparative advantage is when a country can produce a good at a lower cost than others countries.
D.
Comparative advantage is when a country has a higher opportunity cost of production.
the ability of an individual or group to carry out a particular economic activity (such as making a specific product) more efficiently than another activity.