I believe that the correct answer is A. I know that the answer isn't C or D, and I don't think that it's B.
Answer:
Supplies for the confederate war effort, gain political balance in the union, force Lincoln to pull his troops away. Why was the Battle of Gettysburg a disaster for the South? ... It split the confederacy in half - Limited trade with Britain.
Explanation:
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. C. Clinton was boost by his pledge of no new taxes.