What type of warfare did Union generals use at the Battle of Shiloh to defeat the Confederate forces? A: Generals used attrition warfare; they held a line of defense and continuously reinforced it with troops.

B: Generals used divide and conquer warfare; they focused all of their firepower on the center lines.

C: Generals used guerrilla warfare; they used the landscape to their advantage and fought only when they held a significant advantage.

D: Generals used trench warfare; they dug trenches in the ground and only came up to fire when the enemy was close.