The Domestic Opportunity Cost of Producing a Television in the United

The domestic opportunity cost of producing a television in the United States is 20 bushels of wheat. In Korea, the domestic opportunity cost of producing a television is 10 bushels of wheat. In this case:

A) Korea has a comparative advantage in the production of wheat.
B) the United States has a comparative advantage in the production of televisions.
C) mutual gains from trade can be obtained if the United States imports televisions from Korea and Korea imports wheat from the United States.
D) mutual gains from trade can be obtained if the United States imports wheat from Korea and Korea imports televisions from the United States.