Which best explains the message the Monroe Doctrine sent to other nations? that the United States was powerful enough to stop new colonization in the Americas
that the United States was afraid of each nation that sought to colonize the Americas
that the United States wanted to take over other nations in Europe and in the Americas
that the United States feared the power of European nations and would allow them to colonize the Americas

Explanation:

The answer is he United States was powerful enough to stop new colonization in the Americas

A) that the United States was powerful enough to stop new colonization in the Americas

social contract theory basically says that all individuals are born equal, and provided a god given right to consent to be governed. american government is based of this

thomas hobbes and john locke said that we are selfish, individualistic, and constantly at war with each other, therefore we need to be controlled. 

government is defined as the legitimate use of force to control human behavior within territorial boundaries, here comes in hobbes and locke.

hobbes takes the part about controlling human behavior. while locke takes the part of legitimate use of force, since force is not legitimate unless there is consent of the people. 

there are basically 3 goals of the government: 1) maintain order by protecting life and property. 2) providing public goods, those which are typically not provided by the public sector, such as roads and education. 3) promote equality be it political, opportunist or outcome equality.