They needed to keep their slaves otherwise it would have put them in serious debt and they would need to do the work themselves which was a lot due to the south was the biggest cotton producer in the world but, the north didn't want them to have slaves.
Tax the people
could not ensure laws were carried out
could not controll trade between states
The answer is either Ethnic, or social. I'm not too sure, but I'm leaning towards Ethnic. Hope I could help!
Answer:
Congress. the group of people in the US who are elected to make laws.
What are the answer choices?