What was a goal of the muckrakers? O A. To defend political machines
O B. To restore the Populist Party
O C. To protect business interests
D. To report on society's problems

Explanation:

The muckrakers played a highly visible role during the Progressive Era. Muckraking magazines—notably McClure's of the publisher S. S. McClure—took on corporate monopolies and political machines, while trying to raise public awareness and anger at urban poverty, unsafe working conditions, prostitution, and child labor.