A simultaneous negative demand and supply shocks affecting the foreign exchange market will the quantity of foreign exchange and The exchange rate Select one: O a. may be decrease, definitely increase O b. definitely decrease; have an ambiguous effect on O c, definitely increase; have an ambiguous effect on O d. may be increase, definitely increase All else constant, a decrease in exchange rate will cause a the demand curve for foreign exchange Select one: O a. movement downward along O b. right shift of O c. movement upward along O d. left shift of