C, because that was basically one of the reasons for the Civil War as well. The Northern and Southern states were always fighting about whether slavery should expand west or not.
I believe the correct answer is actually:
"1. the election results were challenged in court up to five weeks after the election"
It’s actually called the Ten-Percent Plan, but in this case, it’s Lincoln’s Plan
It was so the delegates would be free to say what was on their minds. If anything about what they said would go to the public, there would be people who would be mad at them and thus possibly hurt them. It was to protect them.
