Question

the first major union victory and one of the bloodiest battles of the civil war came at
○ bull run.
○ antietam.
○ chancellorsville.
○ fort sumter.

Explanation:

Antietam was the first major Union victory and one of the bloodiest battles of the Civil - War. Bull Run had early Confederate victories. Chancellorsville was a Confederate victory. Fort Sumter marked the start of the Civil War, not a Union victory.

Answer:

B. Antietam