Which of the Following Statements Is Correct Concerning the Kinked-Demand

Which of the following statements is correct concerning the kinked-demand curve variant of oligopoly theory?

A) It assumes that the portion of the demand curve above the kink is elastic and the portion below the kink is inelastic.
B) It assumes that the portion of the demand curve above the kink is inelastic and the portion below the kink is elastic.
C) It assumes that the marginal costs of all firms are the same.
D) It assumes that while the some firms will charge the same price they may produce different outputs.
E) It assumes that while the some firms will produce the same output they will charge different prices.