Answer :
The exchange of paper dollars for a certain amount of gold in the United States of America is an example of: A. representative money.
What is money?
Money can be defined as any formally recognized economic unit that is generally (universally) accepted as a medium of exchange for goods and services, as well as repayment of debts such as loans, taxes across the world.
In Economics, representative money refers to a certificate such as paper dollars, that can be exchanged for an underlying commodity e.g silver, food, gold, etc.
In conclusion, the exchange of paper dollars for a certain amount of gold in the United States of America is an example of representative money.
Read more on representative money here: https://brainly.com/question/11252085
#SPJ2