Pure Oligopoly Differs from Differentiated Oligopoly in That

Pure oligopoly differs from differentiated oligopoly in that

A) the products of pure oligopolists are identical.
B) the pure oligopolist has greater power over price.
C) pure oligopolists are more likely to advertise.
D) entry into the product group is relatively easy for the pure oligopolist.
E) only the pure oligopolist faces a downward-sloping demand curve.