The correct answer is D) destroy the South's strategic and economic capacity to fight.
The main purpose of General Sherman's "March to the Sea" in 1864 was to destroy the South's strategic and economic capacity to fight.
In 1864, General Sherman started a military campaign called “March to the Sea”. As a General of the Union Army, Sherman fought and eliminated everything the Army encountered. First, they captured Atlanta. The objective was to eliminate everything that the enemy could use to combat the Union. The Confederates suffered great losses of infrastructure, roads, and properties. The Union Army blocked the supplies for the Confederate Army and that was a big reason for the defeat of the Sothern states.