Match the following Opportunity Cost (of some unit) Comparative advantage Market Imperfection Foreign exchange risk Expanded Opportunity Set A Convert USD to China Remibi to invest and convert back to USD B Defined as the value of some other good that you have to give up in order to produce this additional unit C Refers to firms have wider access to resources and gain greater economies of scale D. Countries must different in order to engage trade E Barriers to flows of goods, people or financial are examples of this