Consider the Vietnamese Dong, the currency of Vietnam. Use a foreign exchange market diagram to illustrate and explain the effect on the exchange rate of the Vietnamese Dong against the U.S. that would result from a demand shift of Vietnamese consumers from domestic to U.S. products under the following alternative exchange rate systems:

a. Alternative I: the exchange rate of the Vietnamese Dong against the dollar is flexible. Use a diagram to show this

b. Alternative II: the exchange rate of the Vietnamese Dong is pegged to the U.S. dollar. Use a diagram to show this