To help other people and him self
You can tell right away that initiative and referendum are out because what the heck are those lol.
Then you are left with federalist system and supremacy clause. You know that the supremacy clause is not a system of government, so therefore it is the federalist system.
I hope this helps :)
The answer to your question is that progressivism was the reform movement that ran from the late 19th century through the first decades of the 20th century, during which leading intellectuals and social reformers in the United States. These movements from the reformers shaped the 21st century's freedom.
It is false that the <span>Great Plains became one of the the most productive farmlands in the world, since most of the land is barren and difficult to use for farming because of a lack or irrigation. </span>