Which of the following ideas did both thomas hobbes and john locke write about?

social contract

natural law

declaration of independence

separation of powers

The answer is Social Contract

The social contract is a philosophy that gives legitimacy of the authority and of the state of an individual. Both Hobbe and Locke had believed that the government plays an important role to maintain peace and order. They believe that is part of the natural law of men

I agree with Taskmasters that it is Social Contract.

the answer is states.