Why did the U. S. dollar became important to economies around the world in the mid-20th century?
A. Countries began tying the value of their currency to the U. S. dollar.
B. Most countries replaced their own currency with the U. S. dollar.
C. Businesses were required to use U. S. dollars when buying foreign
goods.
D. The U. S. dollar was the first example of a government creating a
fiat currency
I