If Sandy Creek Energy Resources Wishes to Construct a Coal-Fired

If Sandy Creek Energy Resources wishes to construct a coal-fired electric plant in a nonattainment area,which of the following is required?​

A) ​The plant must have the greatest possible emissions controls.
B) ​ Sandy Creek must have all of its other operating plants in compliance.
C) Any emissions must be offset by reductions in other emissions in the area.
D) all of the above
E) only a and b in nonattainment areas