Which of the Following Was the Result at the U

Which of the following was the result at the U.S.Supreme Court level on the issue of whether,in order to address global climate change,the Clean Air Act authorizes the EPA to issue regulations involving the emission of greenhouse gases from new motor vehicles?

A) The Court held that the Clean Air Act authorizes the EPA to regulate greenhouse gas emissions from new motor vehicles in the event that it forms a judgment that such admissions contribute to climate change.
B) The Court held that the Clean Air Act authorizes the EPA to regulate greenhouse gas emissions from new motor vehicles in the event that Congress determines that such gasses significantly contribute to global climate change but that since Congress has made no such determination, the EPA is powerless to act on the issue.
C) The Court held that regardless of whether any determination is made as to the danger posed by such emissions, the Clean Air Act authorizes the EPA, in the director's discretion, to regulate greenhouse gas emissions from new motor vehicles.
D) The Court held that the EPA lacks the authority to regulate greenhouse gas emissions from new motor vehicles.
E) The Court held that the EPA lacks the authority to regulate greenhouse gas emissions from new motor vehicles unless vehicle manufacturers request guidance on the issue.