"Muckrakers"were

"Muckrakers"were:

A) machines that were put into early coal mines, causing many workers to lose their jobs.
B) workers in British steel mills that demanded, and received, the first pro-labor legislation ever passed.
C) legislators who passed laws favoring special interest groups in return for large campaign contributions.
D) authors, journalists, and others who drew public attention to social, labor, and other problems in the early 20th century.