The General Equilibrium Model of International Trade Pointed Out That

The general equilibrium model of international trade pointed out that:

A) whenever the relative prices of goods are not the same, countries can potentially enhance national welfare by engaging in international trade.
B) producers will specialize and produce more of the goods that, compared to world prices, were relatively cheap at home and fewer of the goods that were relatively expensive.
C) a country will tend to export the goods that are relatively cheap at home, compared to overseas prices, and import the goods that are relatively expensive at home.
D) All of the above.
E) None of the above.