The correct answer is A) The North had a larger population, more food supplies, and greater manufacturing capacity.
A key to the North winning the Civil War was that the North had a larger population, more food supplies, and greater manufacturing capacity.
On April 19, 1865, General Robert E. Lee surrendered to General Ulysses S. Grant, leader of the Union Army in Appomattox, Virginia. The Union had defeated the Confederate Army and the Civil War ended. The Union had some key advantages over the Confederates during the war such as a larger population, more food supplies, and greater manufacturing capacity. The SOuth heavily depended on agriculture and slaves.
The other options of the question were B) General Lee was a gifted tactician and an experienced commander, C) the North move to control the Mississippi River was immediately successful, and D) General McClennan emphasized careful and lengthy planning and preparation.