Final answer:
Country B has a comparative advantage in maize.
Step-by-step explanation:
To determine which country has a comparative advantage in a particular product, we need to compare their opportunity costs. The opportunity cost is the value of the next best alternative that is given up in order to produce a particular product. In this case, Country A produces 80 tonnes of maize and 125 tonnes of cheese, while Country B produces 100 tonnes of maize and 133 tonnes of cheese. The opportunity cost of producing 1 tonne of maize in Country A is 125/80 = 1.5625 tonnes of cheese, while the opportunity cost of producing 1 tonne of maize in Country B is 133/100 = 1.33 tonnes of cheese. Since the opportunity cost of producing maize is lower in Country B, we can conclude that Country B has a comparative advantage in maize.