If the United States Creates a Trade Agreement with Vietnam,we

If the United States creates a trade agreement with Vietnam,we know that

A) Vietnam will benefit,but trade with a less developed,Third World country will not help the United States.
B) Vietnam can get no benefit,since its workers are not as productive as the United States'.
C) Vietnam can get no benefit,since its businesses have less capital than the United States'.
D) Vietnam and the United States can both benefit.
E) physical and cultural differences between the two countries are too great to benefit from trade.