The quite is most likely from The Florida Constitution
Well this is a very opinionated question but personally:
Astronauts improve society by using the newest and most expensive technology to be able to explore space as we know it.
The answer is D. A Supreme court Decision to move the Cherokee west of the Mississippi River. Here is text from Wikipedia,
"Indian removal was a genocide in the 19th century whereby Native Americans were forced by the United States government to leave their ancestral homelands in the eastern United States to lands west of the Mississippi River, specifically to a designated Indian Territory (roughly, modern Oklahoma)."
The idea is known as the Republican form. The idea is that people democratically elect those who would represent them in a government, and those people would be held accountable for what they've done if they do something opposite to the will of the people. It's the only way that a democracy can work properly because others would be impossible with that many people.