Vertical Integration Meant

Vertical integration meant

A) buying up all competitors.
B) breaking up older but less competitive monopolies.
C) owning all aspects of production and distribution under one corporate organization, from accessing and owning the raw materials, to the production of the good(s) , to the delivery of the finished product(s) to the consumer.
D) creating a business model that would allow for mass production.
E) buying just enough shares in a publicly traded company so as to control it.