How did muckrakers influence the progressive movement at the turn of the century?
a) by running for political office
b) by bringing important social issues to light
c) by supporting the rights of big business owners
d) by writing reformist social policies

B-by bringing important social issues to light.

During the progressive era, a reform oriented investigative journalism was performed by people known as muckrakers. They brought to light socio-economic problems such as poor industrial working conditions, poor urban living conditions, and unscrupulous business practices

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