The correct answer is “Governments are instituted among Men, deriving their just powers from the consent of the governed.”
This is the correct answer because a social contract refers to an agreement between the government and its citizens. This social contract involves citizens voluntarily giving up some of their individual freedoms by voting on individuals to represent them to make laws. These citizens will then agree to follow said laws made by their representatives.
In this quote, it directly refers to this idea because it discusses how the government gets their power from "the consent of the governed" (aka the citizens).