C) the uniform standard would not achieve a costeffective solution because firm Y should do more of the abating, and firm X should do less to move closer to a costeffective solution. D) firm Y would face a marginal abatement cost that is higher than that for rm X 24) Refer to Model 3. The costeffective solution is achieved if: 24) A) rm Y does all of the abating because its MAC is lower B) firm X abates 6 units, and firm Y abates 14 units C) firm X abates 5 units, and firm Y abates 15 units D) each firm abates 10 units of pollution E) none of the above 25) Refer to Model 3. The cost savings associated with the costeffective solution relative to a uniform 25) standard equals: A) $15 B) $16 C) $20 D) $0 E) none of the above