Which business practice did Rockefeller repeatedly use that helped him succeed in building his oil monopoly? In all his businesses, Rockefeller made sure that he controlled all aspects of production.
With every purchase of a refinery, Rockefeller would add new products to his business.
In all his businesses, Rockefeller made a profit and used it to expand or buy other businesses.
With every business Rockefeller bought, he would learn about it, sell it at a profit, and buy another business.

The correct answer is D.In all his businesses, Rockefeller made sure that he controlled all aspects of production.

What he did for example for oil was control all things relevant for oil such as rigs, refinement, transportation, gas stations, roads, all kinds of similar things. This way nobody could bother him in any way and he could dictate the prices and the market.

Hope it helps! :)

answer: (fluidity)is the correct answer.

explanation: because of this characteristic, success on the battlefield depends in large part on the ability to adapt to proactively change events to our advantage as well as to react quickly to constantly changing conditions

a

explanation: