Question

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

Answer 1

C) He created a trust that controlled oil wells, refineries, and distribution networks