Which statement about regulatory characteristics distinguishes non-point sources from point sources?

Which statement about regulatory characteristics distinguishes non-point sources from point sources?

• A. NPS has a single, discrete outfall that is regulated under permits; PS lacks any discharge point.
• B. NPS is regulated under permits; PS is diffuse and not regulated.
• C. NPS lacks a single identifiable discharge point and is influenced by land use and hydrology; PS has a single, discrete outfall that is regulated under permits.
• D. NPS is always regulated by permits; PS has multiple diffuse outfalls.

Answer: (C)