Respuesta :
The Battle of Antietam affected the focus of the Civil War by leading to the Emancipation Proclamation. Thus the correct answer is C.
What are the causes of civil war?
The Northern and Southern States had different social and economic systems, which led to violence. Enslavement was a controversial matter that led to the Civil War. The economics of slavery and the political influence of that system was at the core of the battle.
The Union Army wanted to eliminate the Confederate soldiers from approaching Union territory, and the Battle of Antietam was important.
Lincoln was determined that the North had won the war as a result of the Confederate Army's retreat, and he was able to abolish slavery at this point.
Therefore, option C leading to the Emancipation Proclamation is appropriate.
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