Answer:
C. the expansion of slavery into new territories
Explanation:
The Kansas-Nebraska Act was passed to allow for settlement in the territories of Kansas and Nebraska.
The act allowed settlers to vote on whether or not the territory would have slavery.
John C. Beckinringe with 11 states carried in the deep south, and John Bell who carried Tennessee, Kentucky, and Virginia.
by using transitions to create logical relationships among the claim, evidence, and reasoning