Answer:
b) social contract theory.
Step-by-step explanation:
According to this theory, humans were living in a natural state, where everything was allowed, and there were no laws to regulate society. But the constant war state did not promote a political or social development. Because of that, humans give their liberty to a ruler (the State) in exchange for safety, social development, and private property. This is a Social Contract. However, the government should be limited to not allow a dictatorship.