History, 07.12.2020 22:00, shanicar33500

How did John D. Rockefeller horizontally integrate his monopoly in 1880? A.)He purchased iron mines around the country to add to his business.
B.)He created a trust that controlled ninety percent of the nation's oil refineries.
C.)He created a trust that controlled oil wells, refineries, and distribution networks.
D.)He purchased coal plants around the country to add to his business.

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How did John D. Rockefeller horizontally integrate his monopoly in 1880? A.)He purchased iron mines...