Answer:
the right of the people to vote over slavery
Explanation:
The questions above is related to the "Kansas-Nebraska Act." It was a bill passed in 1854 that allowed the people in a territory to determine whether they will allow slavery or not in the new state's borders. This was called "popular sovereignty."
This bill was meant to organize the western territories. Although it passed the Congress, it wasn't able to achieve its purpose. This led to more factions because many people from the North opposed slavery while many people from the South supported slavery.
So, this explains the answer.
