I am pretty sure that the answers would be a b and a
It had many causes, but there were two main issues that split the nation: first was the issue of slavery, and second was the balance of power in the federal government. The South was primarily an agrarian society. Throughout the South were large plantations that grew cotton, tobacco and other labor-intensive crops.
Hope this helps!
Answer:
When they were discovered Kennedy was not happy about it, but the issue was if they were removed it could spark larger issues including a new world war. Which that's not very fun lol