A Country Possesses a Comparative Advantage in the Production of a Good

A country possesses a comparative advantage in the production of a good if

A) it possesses an absolute advantage in the production of this good.
B) the opportunity cost in terms of forgone output of alternative goods is lower for this country than it is for its trading partners.
C) it is able to produce more of this good per hour than any other country.
D) All of the above.