John D.Rockefeller's Organizational Technique of Horizontal Integration Involved

John D.Rockefeller's organizational technique of horizontal integration involved

A) franchising Standard Oil gasoline stations to independent operators.
B) controlling all phases of the oil industry from drilling to commercial retailing.
C) creating standardized job assignments and fixed production and sales quotas for all employees.
D) forcing small competitors to assign stock to Standard oil or lose their business.
E) developing multiple uses for oil in transportation, lighting, and industry.