Answer:
The correct answer is Muckrakers presented Americans with facts about corruption in industry and government that prompted them to demand change.
There were several different examples of this type of journalism during the late 19th and early 20th century. For example, the well known book How the other half lives (by Jacob Riis) discusses the awful living conditions of immigrant workers who live in major cities like New York. This shows almost inhumane conditions, with several people living in a closet sized room.
Another example would be The Jungle by Upton Sinclair. Even though this book is fiction, it gives a realistic look into the working conditions of individuals in Chicago's meatpacking industry. The unsanitary practices resulted in a demand for change, as the meat that citizens were eating was unsanitary and could cause potential death/sickness. This book helped lead to change in the form of the Meat Inspection Act of 1906.
