(A) Tennessee
(B) ** West Virginia
(C) Kentucky
EXPLANATIONS BELOW
Concept note-1: -Western Virginia became sharply divided over the issue of secession from the Union, leading to the separation from Virginia, and formalized by West Virginia’s admittance to the Union as a new state in 1863. West Virginia was one of five Civil War border states.
Concept note-2: -West Virginia Statehood, June 20, 1863.