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.
"<span>b. The North became integrated; the South remained segregated" would be the best option, since immediately after the Civil War the South implemented a series of Jim Crow laws that were meant to keep blacks separate from whites.</span>
<span>I think its C.A large labor force that had left the villages was available for work in city factories.</span>
<span>3. Cultural exchanges between the Middle East and Europe grew</span>
Answer:
D. A U.S. aid program to rebuild the economies of Europe after World War II.
Explanation: