Which three events caused serious damage to confederate morale and ultimately led to the confederacy's defeat?

1) The Battle of Gettysburg which led to a large number of Confederate deaths and marked the farthest point north southern armies reached.

2) The Siege of Vicksburg which secured the Union control of the Mississippi and bisected the Confederacy into two.

3) Sherman's March to the Sea destroyed everything in the path of Shermans advancing field army and destroyed Georgia utterly.
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The answers are.

Sherman's March to the SeaLincoln's reelection as presidentDefeat in the battle of Gettysburg

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The answer is a)advocates of divine right.