Answer;
D. WaterSense program
Explanation;
WaterSense is a voluntary partnership program sponsored by the U.S. Environmental Protection Agency (EPA). It is both a label for water-efficient products and a resource for helping you save water.
-By promoting and enhancing the market for water efficient products and services, WaterSense makes every drop count by leveraging relationships with key utility, manufacturer and retail partners across the U.S.
-WaterSense makes it easy for consumers to differentiate among products that use less water and reinforces that saving water is easy and often does not require a major lifestyle change.
