The choices for this question are:
A. It becomes necessary for one people to dissolve its political bands which have connected them with one another.
B. He has dissolved Representative Houses repeatedly, for opposing with manly firmness his invasions on the rights of the people.
C. That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed.
D. It is their right, it is their duty, to throw off such Government, and provide new Guards for their future security.
The correct answer is C.
This statement associates the idea that in order to secure rights, is important to institute governments whose power is only just if deriving from the consent of the governed.
That means that democracy only exists and only puts rights into practice if its government relies on the consent of the governed. This way representative government, rights and democracy all depend on each other to exist.