If All Tariffs (And Quotas)between Countries on the North American

If all tariffs (and quotas) between countries on the North American continent were eliminated,

A) small Central American countries would be hurt because they would be unable to compete with larger nations.
B) the United States would gain at the expense of the less-developed North American countries.
C) the combined wealth of the countries would increase because elimination of trade restrictions would permit greater gains from specialization.
D) wage rates in the United States would decline to the average for the North American continent.