19. The formation rates of product are measured under different reaction conditions, choose the incorrect statement. (A) If the second reaction is extremely slow, the reaction is first order with respect to the partial pressure of A. (B) If the second reaction is extremely slow, the reaction rate can be increased by increasing the equilibrium constant of the first reaction. (C) If the second reaction is extremely fast, the reaction rate is independent of the partial pressure of S. (D) Holding the initial partial pressure of A constant, the reaction approaches zero order in high pressure regime. (E) Holding the initial partial pressure of A constant, the reaction approaches first order with respect to the partial pressure of S in low pressure regime.