If Country A specializes in wheat production and exports it to Country B, which of the following best explains the underlying reason for this trade arrangement?

The trade arrangement between Country A and Country B is mainly based on the benefits of specialization. Country A focuses on producing wheat because it can do so more efficiently than Country B, meaning it can grow more wheat with less time and resources. By specializing, Country A can produce a surplus of wheat, which it then exports to Country B, allowing both countries to benefit. For example, if Country A can produce 100 tons of wheat while Country B can only produce 50 tons, Country A can sell its extra wheat to Country B, helping both countries get more wheat overall. This way, both countries make the most of their resources, leading to a more efficient and productive trade relationship.