Which of the Following Is NOT a Possible Solution to the Problem

Multiple Choice

Which of the following is NOT a possible solution to the problem of pollution?

A) Converting a resource that is communally owned into a privately owned resource.
B) Imposing a tax on polluters that is related to the amount of pollution.
C) Regulating the amount of pollution that a firm can produce.
D) Subsidizing the costs of production of activities that generate pollution.