What did the Civil War do for the United States? Group of answer choices

Expand Senatorial rule

Double the size of the United States

It granted freedom to enslaved people in the Southern states.

Promoted Land agreements between natives and settlers

The United States fought between northern states loyal to the union and Southern states had seceded to from the Confederate States of America  The principle cause of the war was whether the enslavement of black people in the southern states should continue.

While the American Civil War (1861-1865) was devastating for the United States in terms of human loss of life, it was also the event that caused the states to finally become united

Explanation:

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d. dr. francis collins