An Example of the Command-And-Control Approach to Environmental Policy Is

An example of the command-and-control approach to environmental policy is:

A) placing a tax on freon to reduce its use and the corresponding CFC emissions (which contribute to the ozone hole) .
B) requiring car producers to install new air conditioners that do not use freon.
C) allowing coal producers to buy and sell permits to allow CFC emissions.
D) allowing individuals to sue freon producers if CFC emissions exceed a government-set standard.