s 79-80 explore the difference between positive and normative economics. 80. Here are three statements about what economists think about free trade and protection. I Most economists believe that free trade benefits both parties to an exchange. II Most economists believe that tariffs and quotas reduce the gains from exchange. III Most economists believe that the government should allow free trade. Choose the correct option from the list below. BE CAREFUL! A All three are positive statements. B I and II are positive statements, and III is a normative statement. C All three are normative statements