In Massachusetts V

In Massachusetts v. EPA, where Massachusetts and other states sued to force regulation of greenhouse gases from vehicles, the Supreme Court held that:

A) EPA has final determination of all such regulations; the states may not force EPA to regulate air quality
B) EPA is following the orders of Congress on emissions, so the states can petition Congress, not the courts
C) EPA failed in its obligation to issue regulations to cover greenhouse gases
D) EPA would allow the states to set their own emission standards as part of their State Implementation Plans
E) all of the other choices are covered in the law