<em>Answer:</em><em>The McClure's magazine journalist was an investigative reporting pioneer; Tarbell exposed unfair practices of the Standard Oil Company, leading to a U.S. Supreme Court decision to break its monopoly.</em>
<em>Works written: All in the Day's Work, The History .
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<em>Professions: Journalist</em>
<em>Explanation: </em><em>Hopefully this helps you.(Pls don't report this answer if it is wrong.)</em>
