When the U.S. central bank, the Federal Reserve, increases the supply of money:
a. U.S. interest rates fall which cause the U.S. dollar to depreciate against other currencies.
b. U.S. interest rates rise which cause the U.S. dollar to depreciate against other currencies.
c. U.S. interest rates fall which cause the U.S. dollar to appreciate against other currencies.
d. U.S. interest rates rise which cause the U.S. dollar to appreciate against other currencies.