According to international trade theory, a country should: a. import goods in which it has an absolute advantage. b. import goods in which it has a comparative disadvantage. c. export goods in which it has an absolute advantage. d. import goods in which it has an absolute disadvantage.

B. import goods in which it has a comparative disadvantage.

Explanation:

According to the Factor Proportions Theory, the supply and demand of a country determine the cost of any factor or resource. When there is a great supply of some factor in comparison with its demand, this factor will be cheaper and vice-versa. So, if some factors are in great supply (cheaper products), a country will export goods based on them, and if some factors are in short supply (products with a higher demand), a country will import goods based on them.  

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can you explain a little further maybe give multiple choice? ?