Your answer is D. this type of democracy was founded on the principle of elected officals representing a small group of people.
I know the first ones where build in Rhode Island, but I don't think that's what the answer wants :/
In my view the period that has had the biggest impact on the development of US society is The Great Depression. That depression brought a huge economic growth but also changed mass culture that swept many Americans into consumer society.
The purpose is very simple just say its to keep the rights and protect the citizens to promote happiness,life,liberty,and property.
Topa Inca Yupanqui is believed to live in the Inca empire