Bread Brands LLC operates a dough making and packaging plant$$a $$major source$$that emits hazardous air pollutants for which the Environmental Protection Agency $($EPA$)$ has set maximum levels of emission. The plant does not use equipment to reduce its emissions. Under the Clean Air Act, this is most likely

a$.$ not a violation because packaging is not regulated by the EPA.

b$.$ a violation.

c$.$ not a violation because dough is not considered a pollutant.

d$.$ not a violation because the plant is not attempting to reduce emissions.