Under the Clean Air Act, the Environmental Protection Agency must set minimum emission standards for toxic air pollutants. Which of the following statements best describes the test used for setting these standards?
a. All pollutants with any risk are prohibited.
b. Standards must set an ample margin of safety for the public.
c. Standards must balance safety and the cost of reducing the pollutants.
d. Standards must balance safety and the current technology available for reducing pollutants.
e. Standards must balance safety, cost, and the current technology available for reducing pollutants.