Under a system of floating exchange rates, relatively low productivity and high inflation rates in the United States result in:
A.
An increase in the demand for foreign currency, a decrease in the supply of foreign currency, and a depreciation in the dollar
B.
An increase in the demand for foreign currency, an increase in the supply of foreign currency, and an appreciation in the dollar
C.
A decrease in the demand for foreign currency, a decrease in the supply of foreign currency, and a depreciation in the dollar
D.
A decrease in the demand for foreign currency, an increase in the supply of foreign currency, and an appreciation in the dollar