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Upton Sinclair, Frank Norris, and Ida Tarbell made their greatest contributions to

the Progressive movement by *

A. speaking out for the equal rights of Hispanic Americans

B. working to end political corruption in cities

C. publishing books and articles to expose the problems of society

D. supporting legislation to improve tenement housing

User Jon Doe
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1 Answer

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Answer:

C

Step-by-step explanation:

They wrote books on the Progressive movement.

User Snnlankrdsm
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