Gettysburg civil war battle proved to be the last time confederate forces would make a major attack into the North. Option D is correct.
The Battle of Gettysburg was a conflicnt occurred on July 1–3, 1863, in and around the town of Gettysburg, Pennsylvania, where the Union faced the Confederate forces during the American Civil War. The battle claimed the largest number of lives of the entire war and is often described as the war's turning point.
