Answer:
A) often be used for irrigation and watering lawns
Step-by-step explanation:
What is greywater: Greywater is all the wastewater spawned from households or office buildings from streams without fecal contamination, that is all streams except for the wastewater from toilets. Sources of grey water include sinks, showers, baths, washing machines or dishwashers.
Treated grey water has many uses, for example, toilet flushing or irrigation, watering lawn etc.