What were the goals of progressives and how did they hope to achieve these goals?

Here is the answer of the given question above. The goals of the progressives were to split up railroad regulations and business monopolies; and to introduce referendums for voters to commence laws, the election of the U.S. Senators by the people, and a graduated income tax. Many constitutional amendments and congressional acts witnessed these concerns brought into the Americal law. 

What are the choices?