Suppose a Country Without Any International Trade Opens Its Borders

Multiple Choice

Suppose a country without any international trade opens its borders to international trade. How will its location on its production possibility frontier change?

A) The country moves from inside the PPF to on the PPF.
B) The country moves from on the PPF to beyond the PPF.
C) The country moves along the PPF toward its comparative advantage.
D) The country moves along the PPF away from its comparative advantage.