The correct answer is D. The Confederate defeat at Antietam was important to the North because it prevented Britain from supporting the Confederacy in the war.
Explanation:
The Battle of Antietam is one of the largest battles in the history of the United States of America in terms of the number of casualties (dead and wounded) that reached 23,000 from both sides. The battle took place on September 17, 1862, near the town of Sharpsburg, Maryland. The battle was led by General George McClellan and the Confederate South by General Robert Edward Lee. Despite the numerical superiority of the North, McLennan failed to achieve a decisive tactical victory, and Lee was able to withdraw some of his troops to Virginia. Strategically, the battle was seen as a marginal victory for the North, that prevented both France and Great Britain from entering into the war to help the Confederacy.
