The following best captures the meaning of monopolistic competition
a. Dividing the market by concentrating on what your company does best and ceding the rest to your competitors
b. Forging strong alliances with rivals to block entry by substitutes into your markets
c. Aggressively competing with other monopolies that infringe on the competitive entry of your firm into their markets
d. Eliminating barriers to entry that protect your industry from competitors that are larger in scale and scope than your own firm