If the price of buying a car starts rising in the united states, consumers may need to look no further than the dollar's recent slide against major foreign currencies. on the other hand, economically depressed midwestern farmers may find it easier to sell surplus grain overseas if a weak dollar makes it cheaper for foreigners to buy u. s. goods. the dollar spent much of last week on the skids, flirting with its lowest level of the year against the japanese also has lost ground to the euro. - from "a weak dollar," by michael wittmann if the higher price of buying a car is due to comparative advantage rather than foreign exchange rates, which is most likely true? a) the opportunity cost of the automobile industry has risen. b) the production rates of the automobile industry have risen. c) the comparable worth of the automobile industry has stabilized. d) the unemployment rates in the automobile industry have decreased.