Answer:
Popular sovereignty
Is the ideals which state that a society need to be run according to the will of the majority of the people rather than a small number of elites.
Social contract
An ideal which state that a society can only be run if the people and the government engaged in a social contract. The people agree to let themselves constricted under the control of government legislations. In return, the government must work to increase the well being of the people.
Natural rights
Natural rights are a set of universal rights that cannot be undone / violated by any legislations or government actions under any circumstances.
Individual rights
Individual rights are a set of rights that bestowed to the people through a specific legal system. This rights can come and go depending on who held the position within the government.