Answer:
The correct answer is C. Muckrackers were important to the progressive movement because they published articles on issues relating to unfair business practices.
Explanation:
The Muckrakers were a group of American publishers and writers who drew public attention to numerous irregularities of the political, social and moral system at the turn of the 19th and 20th centuries.
These writers have tackled a wide range of topics, including the Standard Oil monopoly, cattle processing and meat conditioning, child labor, wages and working conditions in industry and Agriculture. In some cases, journalists' revelations sparked public turmoil, government investigations, and legislation was changed as a result of these investigations in the areas of harmful social situations, pollution, food, product safety norms, sexual harassment, unfair labor practices, fraud and other issues.
