d) It allowed popular sovereignty to decide the slavery issue
He was the 40th president of the United States
Answer:
* State rights are vital to checking the federal government's power, testing new ideas, and ensuring that citizens can better have their voices represented in government.
* It was a way to maintain individual liberty was to instill safeguards against centralized power.
I dont know a third one
Explanation:
They met in the Berlin Conference
A presidential commission found it illegal.
~Hope this helped~