The Rationale for Using Game Theory to Study Oligopoly Is

The rationale for using game theory to study oligopoly is that

A) game theory is an exceedingly simple tool.
B) each output produced by an oligopolist is determined by a linear program.
C) it enables the government to dictate the outcome of a competitive situation.
D) game theory allows consideration of the product transformation curve.
E) in oligopoly, each firm must take account of its rivals' actions.