In the late 19th century, john d. rockefeller was most associated with what company? a) us steel b) standard oil c) general motors d) american telephone and telegraph

The correct answer is B. standard oil

It was Rockefeller's company that reigned supreme on the market and controlled all aspects of manufacture and delivery of and sales of oil. Eventually it was proven to be an illegal monopoly and the company had to be dissolved into numerous smaller ones.

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