How were the courts involved in implementation of the Clean Air Act and Clean Water Act?

How were the courts involved in implementation of the Clean Air Act and Clean Water Act?

Group of answer choices

Environmentalists challenged the laws, arguing that they were not constitutional

The USEPA sued Congress for failing to provide funding to carry out the law

States sued industry for not disclosing information about pollution levels

Industry sued the USEPA for not justifying standards with enough scientific evidence