Answer:
B. specialize in
Step-by-step explanation:
When it comes to production, trade, and making profit of them, the nations have the tendency to specialize in particular industries and activities in which they have a comparative advantage. The reason for this is that they can have less competition on the market, so they will have no problem in selling their products or services, thus they will have certain profit coming in.
With the globalization, the economies around the world have become very connected, and the world became like one major economy where everyone can trade with everyone. The nations started to only focus on production of few goods in which they are the best, knowing that the other goods they need can be obtained by trade with the other nations that have specialized in them.
As examples we can take Ghana with its cocoa bean plantations, Saudi Arabia with the petroleum, Mexico with the corn, Argentina with the beef production etc.