Respuesta :
im pretty sure it’s b !!! from what i remember, the union wouldn’t let others from trading because they blocked supply routes using boats.
During the middle stage of the
Civil War the B. Union controlled supply routes.
What Civil War?
Civil War serves as the type of war that took place in the United States where there was a conflict between different states .
Therefore, Option B is correct because
during the civil war Union controlled supply routes.
Learn more about Civil War at;
https://brainly.com/question/12250589