Answer:
By bringing important social issues to light, is the correct answer.
Step-by-step explanation:
During the Progressive Era in the United States, Muckrakers was a term used by Theodore 'Teddy' Roosevelt, the then President of the United States to describe the investigative journalists. Accordingly, Muckrakers were those journalists who attempted to expose corruption in big industry and management. The performance of muckrakers urged the passage of key enactment that strengthened protections for artists and customers. The muckrakers influence the Progressive movement at the turn of the century by bringing important social issues to light.