Answer:
c) the spoils system
Explanation:
The spoils system is a practice where a political party awards its supporters with government jobs after winning an election.
Not able to trade is the situation we are currently facing
Slavery ended in the United States of America after the civil war because the Union won the war which has the opinion to end slavery.
<h3>How did slavery affect the USA after the civil war?</h3>
Due to Union victory in the Civil War, about four million slaves were freed. The U.S government granted citizenship to African Americans and the right to vote in the election.
So we can conclude that Slavery ended in the United States of America after the civil war because the Union won the war which has the opinion to end slavery.
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