Question 13 Which of the following describes John D. Rockefeller's impact on industry?

A
Rockefeler gained control of most other oil companies and created a trust
B
Rockefeller gained control of most other steel companies and created a monopoly.
C
Rockefeler owned vast
parcels of land and became one of the largest cattle farmers and sellers on the market.
D
Rockefeller invested in many technological advances such as the electric light buib and