The difference between the Social contract theories of both was that Hobbs believed c) that the people could overthrow their ruler if that ruler was abusing their power.
Hobbes on the other hand, believed that the government owed nothing to the citizens and so the people could not remove it even if it wasn't performing.
In conclusion, option c is correct.
Find out more on Locke's theory at https://brainly.com/question/14308888.