How did the outcomes of these battles and the geography of the surrounding areas affect the war? O A. Confederate victories at the Battles of Antietam and Gettysburg allowed the Confederacy to control strategic passes in the Appalachian Mountains. OB. Union victories at the Battles of Vicksburg and Atlanta allowed the Union to disrupt major river and railroad Confederate supply lines. O C. Union victories at the Battles of Vicksburg and Fort Sumter allowed the Union to control major waterways early in the Civil War. O D. Confederate victories at the Battles of Fort Sumter and Atlanta allowed the Confederacy to move supplies from Charleston Harbor to the interior.

B. Union victories at the Battles of Vicksburg and Atlanta allowed the Union to disrupt major river and railroad Confederate supply lines. These victories were crucial in cutting off vital supply routes for the Confederacy, weakening their ability to sustain their army and ultimately contributing to their defeat in the Civil War. Additionally, the geography of these areas, particularly the control of the Mississippi River at Vicksburg, allowed the Union to exert control over key territories and resources, further shifting the balance of power in their favor.