The US Dollar Has Historically Served as the Major International Reserve

The U.S. dollar has historically served as the major international reserve currency. This means that

A) the U.S. lends other countries large sums of money.
B) most international economic transactions take place in U.S. dollars.
C) other countries and investors keep their savings in U.S. dollars.
D) dollars are accepted in more countries worldwide.
E) the U.S. controls major international economic institutions like the IMF and World Bank.