Answer:
B. The success of the attack resulted in the retreat of the union
C. The exhausted Union troops failed to destroy the Confederate soldiers that retreated.
Explanation:
The Battle of Gettysburg, was the most important battle of the American Civil War, was fought between July 1 and 3, 1863 near a small city in Pennsylvania, near several important roads and railroad lines. The Confederation Army under General Robert E. Lee consisted of 72,000 men and was organized into bodies commanded by General James Longstreet, Richard S. Ewell and Ambrose P. Hill, and a cavalry corps under General JEB "Jeb" Stuart. The Union army under General George G. Meade had about 94,000 men, organized into seven bodies and a cavalry corps. Gettysburg had the highest number of casualties of all the Civil War battles, with nearly 23,000 dead, wounded and captured or missing on each side. The battle was a defeat for the Confederacy, as it forced Lee to interrupt his invasion of the North and retreat back to Virginia.