1. How did John D. Rockefeller's use of horizontal integration impact the development of industrial monopolies? O A By owning the industries that supply the necessary components of production, it became easier for Rockefeller to manipulate the
market, thus leading to monopolies.
OB By purchasing smaller companies, Rockefeller exercised monopolistic control over pre and post market pricing, which forced
smaller companies to sell to him or go out of business.
OC Horizontal integration meant that Rockefeller was able to find the best, most level grounds for his oil pipelines, thus monopolizing
the oil transport routes.
OD Rockefeller's use of horizontal integration was viewed negatively by the public and thus led other industries to avoid monopolizing
their respective products.