<span>c) He was a former slave himself</span>
they would use that because that could give infomation that could be helpful
Some examples of this were the Fugitive Slave Act, Preston Brooks's attack on Charles Sumner, and the Dred Scott decision (the part of it which said that African Americans could never be citizens). None of these events tangibly hurt the North or the South.
The southern factories were built to serve the interest of farmers because these industries were agricultural based which implies that there would be more benefit in having related industries in the region. This would help in cutting costs such as transport which meant higher benefits for farmers.
