In economic terms, a country has a comparative advantage when it can produce at a lower opportunity cost than that of trade partners. Hence, the time is when it has the lowest opportunity cost for producing a product
However, a country cannot have a comparative advantage in all goods and services, it can have an absolute advantage in producing all goods.
Lowest opportunity cost
With low opportunity cost, the individual has to forgo or give up very little in the way of resources in order to take advantage of an opportunity.
Therefore, the answer is option D.
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