The Cartel Model of Oligopoly Assumes That

The cartel model of oligopoly assumes that:

A) monopolists sometimes act like oligopolists when they pit divisions of the same corporation against one other.
B) oligopolies act as if they are perfectly competitive when there are no barriers to entry.
C) oligopolies act as if they are monopolists by assigning output quotas to each member so that joint profits are maximized.
D) oligopolies act as if they are monopolists by setting prices competitively for each member.