Question

When one company controls most or all of an industry, it becomes a monopoly. Whose company controlled 90% of the United States oil business in 1878?
A. John D. Rockefeller

B. J. P. Morgan

C. Terrence Powderly

D. Edwin L. Drake

Answer 1

I've read this somewhere too... And John D. Rockefeller is a familiar name.. I would go with A because it's seems most logical

Answer 2

Thats wierd i literally just learned this in history class im in school rn the answer is A john D rockefeller