which of these men created a monopoly in the oil industry?\nhenry ford\nj. p. morgan\nandrew carnegie\njohn…

which of these men created a monopoly in the oil industry?\nhenry ford\nj. p. morgan\nandrew carnegie\njohn d. rockefeller
Answer
Brief Explanations:
John D. Rockefeller established Standard Oil and created a near - monopoly in the oil industry through vertical and horizontal integration. Henry Ford was known for the automobile industry, J. P. Morgan for finance, and Andrew Carnegie for the steel industry.
Answer:
John D. Rockefeller