The Nurse Demonstrates How Water Can Be Rendered Safe for Drinking

The nurse demonstrates how water can be rendered safe for drinking in the event of a disruption of service by: (Select all that apply.)

A) letting the water sit for 24 hours and dipping from the top.
B) boiling the water for 3 to 5 minutes.
C) adding 1 mL (16 drops) of household bleach to a gallon of water and letting it stand for 30 minutes.
D) draining water from hot water heater and using without treatment.
E) pouring water through several layers of cotton towels.