Slavery played the central role during the American Civil War. The primary catalyst for secession was slavery, especially Southern political leaders' resistance to attempts by Northern antislavery political forces to block the expansion of slavery into the western territories.
C is the right answer by the way
Answer:
Technological advances in the arms and artillery in the era of the Civil War resulted in high numbers of casualties on both sides. That´s why many battles of the war were military stalemates but supposed horrendous carnage.
Explanation:
