<span>A. It established federal emissions standards
</span>The enactment of the Clean Air Act of 1970 (1970 CAA) resulted in a major shift in the federal government's role in air pollution<span> control. This legislation authorized the development of comprehensive federal and state regulations to limit </span>emissions<span> from both stationary (industrial) sources and mobile sources.</span>
The correct answer is letter b. delusion.
Delusion refers to the false personal belief, wherein an individual believes in his or her knowledge yet does not believe others, though they are right and have sufficient evidence. Being delusional may be cause by the lack of evidence or incomplete knowledge and wrong perception of things.
Mosaics, mosaics are the answer
