Which of the Following Is True Regarding Enforcement of the Clean

Which of the following is true regarding enforcement of the Clean Water Act?

A) The federal government is solely responsible for enforcing the Act.
B) State governments are solely responsible for enforcing the Act.
C) The federal government is primarily responsible for enforcing the Act, but state governments may enforce the Act if the federal government fails to do so.
D) State governments may enforce the Act, but only if the federal government gives special permission to do so.
E) States are primarily responsible for enforcing the Act, but if a state fails to do so, the federal government may enforce the Act.