The analysis of the Gettysburg Address that is correct is A. It made the purpose of the war greater than just reuniting the nation.
This refers to the historic address given by President Abraham Lincoln in 1863 at the dedication of the National Cemetery at Gettysburg, Pennsylvania.
Hence, we can see that President Lincoln made reference to the Declaration of Independence to talk about the current problems of America and to motivate the soldiers to keep fighting by showing that the purpose of the war was greater than just reuniting the nation.
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