Arrange the following steps to illustrate the process of specialization and trade between two countries, A and B, where A has a comparative advantage in wheat and B has a comparative advantage in cloth: A) Country A specializes in wheat production, B) Country B specializes in cloth production, C) Both countries trade wheat for cloth, D) Each country benefits from lower opportunity costs.

The process of specialization and trade between countries A and B begins with country A specializing in wheat production because it can produce wheat more efficiently than cloth. Meanwhile, country B focuses on cloth production since it has a comparative advantage in making cloth. After both countries have specialized in what they do best, they trade wheat for cloth, allowing each to access products they need without having to produce everything themselves. This trade leads to lower opportunity costs, meaning that both countries can enjoy more goods than if they tried to produce everything on their own. For example, if country A trades 10 tons of wheat for 5 pieces of cloth, both countries end up with more of what they want than if they had not specialized and traded.