In Peconic Baykeeper,Inc

In Peconic Baykeeper,Inc.v.Suffolk County,where an environmental group sued Suffolk County for violating the Clean Water Act by spraying pesticides from trucks and helicopters into stagnant waters to control mosquitoes,the U.S.Court of Appeals held that:

A) the trucks and helicopters were not,contrary to the district court's conclusion,point sources of pollution
B) there was no violation of the Clean Water Act because it only applies to flowing water
C) there cannot be a violation of the Clean Water Act when human health is at stake
D) there was no violation of the Clean Water Act,but there was a possible violation of the Endangered Species Act
E) none of the other choices are correct