One reason early twentieth century muckrakers were able to have a significant impact on society was because

a. sales and circulation of newspapers and magazines increased.

Explanation:

According to a different source, these are the options that come with this question:

a. sales and circulation of newspaper and magazines increased.

b. most citizens of the US were already convinced that Jim Crow laws must be overturned.

c. drought conditions in the Midwest drew attention to social problems.

d. they had the sympathy and support of industrialist like Andrew Carnegie and John Rockefeller.

Muckrackers was the name given to a group of journalists during the early twentieth century. These journalists were dedicated to exposing the injustices they noticed in society. Some of the subjects that muckrackers wrote about were the corruption of the government, the terrible conditions of the poor, the cruelty of Jim Crow laws and the horrible working conditions of factories.

the progressive era is a period of widespread social activism and political reform across the united states that spanned from the 1890s to the 1920s.[1] the main objectives of the progressive movement were eliminating problems caused by industrialization, urbanization, immigration, and political corruption.

the movement primarily targeted political machines and their bosses. by taking down these corrupt representatives in office, a further means of direct democracy would be established. they also sought regulation of monopolies (trust busting) and corporations through antitrust laws, which were seen as a way to promote equal competition for the advantage of legitimate competitors.

many progressives supported prohibition of alcoholic beverages, ostensibly to destroy the political power of local bosses based in saloons, but others out of a religious motivation. at the same time, women's suffrage was promoted to bring a "purer" female vote into the arena.a third theme was building an efficiency movement in every sector that could identify old ways that needed modernizing, and bring to bear scientific, medical and engineering solutions; a key part of the efficiency movement was scientific management, or "taylorism".

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