D white, landowning males
Answer:
The reason was that the tensions, and the subsequent victory of the Union Side in the Civil War allowed the government of Abraham Lincoln to end slavery in the United States.
In other words, he had enough political capital because he had the backing of both union politicians and the people due to the need of leading the war against the Confederate Side in the Civil War.
A. Because with out the quoting it would make your paper plagiarism making you fail
The man positive affect of the war was the employment of many, previously jobless, Americans. War always brings new jobs, not just in the military. Factories that built things such as planes, guns, ammunition, etc. needed people to staff those jobs. This opened up thousands, if not millions, of new jobs for Americans.
Another influence is the development of new technologies. When new technologies are developed during wars, America is able to sell those products to different nations. This would be a positive affect on the economy of America.