Why did the U. S. dollar become a substitute for gold in international markets during the 20th century? A. The United States sols gold at the lowest prices in the world.
B. The United States had the world's largest gold reserves
C. The United States declared that the U. S. dollar was fiat currency
D. The United States threatened to cut off trade other countries

I got B right

The correct answer is C. The United States declared that the U.S. dollar was fiat currency .

Explanation:

Fiat money is money that has no inherent value. The value of fiat money is based on the institution that issues this money saying that it is worth something. In practice, the department is always a state. Fiat money has no coin base or is said to have a paper coin base and has only limited coverage of, for example, a gold reserve. Most currencies in the world today are fiat money, such as US dollars.

When in 1971, during the Nixon government, America abandoned the dollar's parity with the gold standard, the dollar became a fiat currency, and with the passage of time, the main international reserve currency.

answer; i believe that the correct answer is conflict resolution;