Should People Worry About What Goes Down Their Drains

Multiple Choice

Should people worry about what goes down their drains?

A) Yes, because much of what gets washed down the drain ultimately ends up in the drinking water supply.
B) Yes, because much of what gets washed down the drain ends up in rivers, lakes, and streams.
C) No, because water treatment removes all contaminants.
D) Yes, because of both A and B.