One of the reasons why James Madison was in favor of ratifying the Constitution is because he thought it would help prevent disagreement by being a supreme power over the states--making it more difficult for issues between the states to go unresolved.
Answer: C is the correct answer.
Explanation: The Underground Railroad was a fascinating series of homes and businesses that risked their freedom or sometimes their lives to help slaves reach freedom. They would hide and feed escaped slaves and give them directions to the next "stop" on the route.