【单选题】The U.S. dollar was designated as the international currency in international settlements under the Bretton Woods system. The dollar was accepted by the rest of the world because __________.
A.
it could be used to purchase U.S. goods and services
B.
it could be converted to gold at a price of $35/ounce
C.
the U.S. was the only super power at that time
D.
the IMF forced the rest of the world to use dollar to settle international debts