The answer should be out of the ones on the abc list so the answer you need to choose is d
Lincoln was worried about Kentucky, Missouri, Maryland, and Delaware because they were all border states during the civil war. He was worried that they would transform into complete slave states. If they did, the north wouldn’t have much more land and the north would have lost the civil war. He wanted to contain them.
The Populist also known as the People's party on July 4, 1892.
