If a Country Is Absolutely More Efficient Than Any Other

If a country is absolutely more efficient than any other country in producing everything,then it would

A) simply export goods and services and import money.
B) not trade with others because there would be no benefit in doing so.
C) still benefit that nation to specialize and trade those goods in which it possesses a comparative advantage.
D) make it unnecessary for other nations to produce anything for themselves.
E) represent a refutation of the concept of comparative advantage.