The correct answer is " Citizens would be able to form governments that ensure their interests."
The idea of a social contract involves citizens of a country giving up some of their individual liberties (aka freedoms) so that the government can make society safer. Hobbes argued that this social contract, despite the fact that it limits individual freedoms, will benefit citizens because they have the opportunity to pick their leaders who will make laws based around their wants/needs.
Adam Smith advocated a capitalist economy in which people could freely pursue their own self-interest with government repression. But, in pursuit of self-interest led to oppression and greed, that's when the government should intervene with their invisible hand. Smith was truly an economic genius.
Does this help? :)
I think the answer is 1st Amendment of the Constitution. I think it is the answer because the amendment protects freedom of religion.