What is national comparative advantage? If country A has a comparative advantage in the production of automobiles and country B has a comparative advantage in the production of boats, which country will gain from trade? Question content area bottom Part 1 National comparative advantage arises from the differences in _______ across countries. A. the money cost of production B. population C. opportunity cost D. technology Part 2 If country A has a comparative advantage in the production of automobiles and country B has a comparative advantage in the production of boats, ______