CrazyJRocket CrazyJRocket 31-08-2017 History contestada Which of the following was the biggest mistake made by the Confederates that helped the Union gain a victory at Shiloh? A) attacking after such a long march early in the morning B) allowing General Beauregard to devise the attack plan C) stacking Confederate forces one behind the other, which did not allow them all to attack at once D) not attacking from the Mississippi River