Final answer:
Ida Tarbell, through investigative journalism, exposed the Standard Oil monopoly's practices, leading to its breakup.
Explanation:
Ida Tarbell, a journalist and muckraker, played a significant role in bringing about the breakup of the Standard Oil monopoly by exposing its monopolistic practices in 1904.
Her in-depth research and investigative journalism led to the publication of A History of Standard Oil Company, which detailed John D. Rockefeller's business strategies and contributed to the dissolution of the monopoly.
Ida Tarbell's work exemplifies the impact of muckraking journalism in uncovering corporate corruption and advocating for reform in the early 20th century.
Learn more about Ida Tarbell's role in breaking up the Standard Oil monopoly here:
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