A licensee ensures that the use of oxygen equipment meets the following requirements: A) Tanks are stored for easy access B) Oxygen from a portable source shall be used by residents when they are outside of their rooms C) Residents do not share cannulas D) Smoking only outside the building? 1) Tanks are stored for easy access 2) Oxygen from a portable source shall be used by residents when they are outside of their rooms 3) Residents do not share cannulas 4) Smoking only outside the building