How was slavery was banned by the federal government? a. abolished when the founding fathers wrote the constitution b. was made illegal by supreme court ruling c. abolished by constitutional amendment d. none of the above

c. Abolished by Constitutional Amendment.

Explanation:

Slavery in the United States was abolished thanks to two documents. The first one was the Emancipation Proclamation issued by Lincoln on January 1, 1863. The president used his presidential war powers to proclaim the liberty of slaves that were in the ten states still in rebellion. However, it did not affect the slaves in border states that were still loyal to the Union. What effectively abolished slavery for all slaves was the Thirteenth Amendment to the Constitution.

b

explanation: