Lincoln declared that the goal of the civil war was to

The preservation of the Union

Explanation:

During the war, Lincoln pushed Congress to end slavery by constitutional amendment and made the issue a part of the war with the Emancipation Proclamation in 1862 as well as in his Gettysburg Address in 1863.

it's hard to read but b: starting on a project last minute can increase anxiety.

that sounds the best out of the answers given because procrasinating can increase stress and anxiety because working on something last minute is stressful.

hope this , have a nice rest of your day