Environmental laws often "double-up" by imposing both a technology-based standard for the emissions of a factory and an effects-based ambient standard. For instance, under the Clean Air Act, a factory may be subject to a technology-based standard limiting its emissions of sulfur dioxide. In addition, it may be subject to an even more stringent standard as necessary to ensure compliance with the National Ambient Air Quality Standard for sulfur dioxide in the particular locality in which the factory is located. Environmental laws "double up" standards in this manner because (pick the best answer): Question 5 options: a) Compliance with a technology-based standard alone will not ensure that harmful health effects will be avoided. b) If you want to be protective of the environment, two standards are always better than one. c) With two standards, one can be set by the federal government and one by the state government