Fear of overthrow--European leaders were fearful they would be next in a liberal overthrow and banded together to protect the interests of their monarchies.
Klemens von Metternich of Austria convened the Congress of Vienna where he created a plan to protect the monarchies of Europe. Through alliances they all agreed to protect and defend each other if a revolution occurred in their country.
F,b,and a i believe
bit there might be more
The correct answer is the social contract theory
The idea of the social contract had a huge impact on the founding of the nation. The founding fathers particularly Thomas Jefferson, and James Madison believed that a government is established by the free choice of its people and is required to serve the people