What were “greenbacks”? a. copper coins used by the confederacy during the civil war b. paper currency used by the confederacy during the civil war c. privately issued currency used by the union during the civil war d. commodity money used by the union during the civil war

The correct answer, according to Gradpoint, is D. Commodity money used by the Union during the Civil War. I hope this helps

Option B, paper currency used by the Confederacy during the Civil War , is the right answer.

Explanation:

The paper currency issued during the American Civil War in the United States was known as the Greenbacks. This currency had two types: the Demand Notes and the U.S. Notes. While the Demand notes were issued in the period between 1861–1862, the  U.S. Notes were issued in the years between 1862–1865. The Greenbacks were not backed by any metallic value such as gold or silver. They only had the U.S. government's credibility.

a.

congress passed laws allowing for free passage between states.

utilized the penal colony