If Sierra Leone Has a Comparative Advantage in the Production

If Sierra Leone has a comparative advantage in the production of coffee,and its previously closed economy is opened to trade coffee for imported steel,Sierra Leone's

A) steel industry will benefit at the expense of its steel consumers.
B) steel industry will benefit at the expense of its coffee industry.
C) steel consumers benefit,as will the nation's steel producers.
D) coffee producers will benefit and as will the nation's coffee drinkers.
E) steel consumers and coffee producers will benefit.