which market is an oligopoly? which market is monopolistically competitive? instructions: in order to receive full credit, you must make a selection for each option. for correct answer(s), click the option once to place a check mark. for incorrect answer(s), click the option twice to empty the box. check all that apply a retail gas market is monopolistically competitive.unanswered a retail gas market is an oligopoly.unanswered a college education market is monopolistically competitive.unanswered a college education market is an oligopoly.