Question

An industry that has four large firms that provide ______ of the supply of the product is called an oligopoly.

a. 75%
b. 65%
c. 55%
d. 45%

Answer 1

An industry that has four large firms that provide ______ of the supply of the product is called an oligopoly. A 75%

Answer 2

I cannot find a definition of oligopoly on line or anywhere else that specifies precise thresholds like what you are asking about. You will have to consult your own textbook.
My guess would be A.
hopes this helps :) :D :)