The kinked demand curve model of oligopoly assumes that the price elasticity of demand?

(A) in response to a price increase is more than the elasticity of demand in response
to a price decrease.
(B) is constant regardless of whether price increases or decreases.
(C) is infinite if price increases and zero if price decreases.
(D) n response to a price increase is less than the elasticity of demand in response to a
price decrease.