<span>John D. Rockefeller did everything by his own. Vertical integrations means that he employed his own workers, then he constructed barrels to store oil and rent wagons and horses to transport that barrels. So it's called vertical integration. </span>
<em><u>Eugene V. Debbs is the answer.</u></em>
Answer:
A) to Americanize the Plains Indians.
Explanation:
Answer:because they made them into slaves
Explanation: