The correct answer is C. The battle that resulted in both a Confederate victory and the death of General Stonewall Jackson was the Battle of Chancellorsville.
On May 2, 1863, during the Battle of Chancellorsville, Jackson went on a night reconnaissance mission and was shot by his own men, who due to the darkness did not recognize him. His death (caused by the complications of his injuries and pneumonia) was a real blow to the Confederate States, both for the moral of their public opinion and their military possibilities (Lee reorganized the army promoting the best generals in command of the divisions, but none had the experience and effectiveness of Stonewall Jackson), already depleted due to the loss in that same battle of 15% of its active forces.
