知识点在哪个视频里？
问题如下图：
选项：
A. 
B. 
C. 
解释：
NO.PZ2016010802000066 问题如下 Upsilon NaturGas, Inis a monopoly enjoying very high barriers to entry. Its margincost is $40 anits average cost is $70. A recent market stu hterminethe prielasticity of manis 1.5. The company will most likely set its priat: A.$40. B.$70. C.$120. is correct.Profits are maximizewhen MR = MFor a monopoly, MR =P(1-1/|E|) Setting this equto MC ansolving for P:$40 = P[1 – (1/1.5)] = P × 0.333P = $120 考题利润最大化解析本题直接考察利润最大化，直接套用公式，MR =P(1-1/|E|) ，代入数据得$40 = P[1 – (1/1.5)] = P × 0.333P = $120 利润最大化为什么不是 MC = MR?
NO.PZ2016010802000066 $70. $120. C is correct. Profits are maximizewhen MR = MFor a monopoly, MR =P(1-1/|E|) Setting this equto MC ansolving for P: $40 = P[1 – (1/1.5)] = P × 0.333 P = $120 考题利润最大化 解析本题直接考察利润最大化， 直接套用公式，MR =P(1-1/|E|) ，代入数据得 $40 = P[1 – (1/1.5)] = P × 0.333 P = $120是否还在新考纲内容，谢谢
老师，这题如果有政府干预就选B 吗？
这个知识点在讲义的多少页，谢谢！
