Question

kentucky, maryland, missouri, and delaware were border states. what was true of the border states? select the two that apply. they joined the confederacy. they were free states. they were slave states. they stayed in the union.

Explanation:

Border states during the U.S. Civil War were slave states that did not secede to join the Confederacy; they remained part of the Union. These states allowed slavery but stayed loyal to the Union.

Answer:

C. They were slave states.
D. They stayed in the Union.