The American automobile industry used to be dominated by "The Big Three," including General Motors, Ford, and Chrysler. However, as many more foreign competitors began influencing this market, the American companies had to modify and differentiate their products. The automobile industry moved from a(n) ______ structure to a(n) _______ structure.
a) monopolistic; oligopolistic
b) oligopolistic; pure competition
c) oligopolistic; monopolistic competition
d) monopolistic competition; pure competition
e) monopolistic; monopolistic competition
Answer: c