When two countries produce those goods for which each has the lowest opportunity cost, and then trade for those each could produce only at a high cost, they are trading according to their:

Comparative Advantage

Explanation: Comparative Advantage is a situation whereby a country produces a product, goods or services which it has the lowest opportunity cost of producing than another country and trades it with another country for another product, goods & services.

This is an aspect of international trade that gives a country production specialisation on the product, goods & services which they produce.

Terms of trade is determined by a country's Comparative advantage and its opportunity costs in which a country can trade with benefits.

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.

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