Answer:
Option C is the correct Option.
Step-by-step explanation:
First of all, let me clear it to you that, it is a multiple choice question with 5 options in it.
Question Statement:
Why would it be economically efficient to require a natural monopoly to charge a price equal to marginal cost?
Solution:
The correct answer to this question is option C .
Option C = Economic efficiency requires the last unit of a good produced to provide an additional benefit to consumers equal to the average cost of producing it
Reasoning:
The marginal value of the last unit of output delivered to consumers is equal to the marginal cost of production. The overall welfare surplus is maximized, including both user and producer surpluses. There is no loss of dead weight.