A home care nurse is making a follow-up visit with a client who has COPD and is using a compressed oxygen system in his home. Which of the following actions should the nurse take?

A. Storing oxygen tanks under the bed is not safe due to limited ventilation and fire hazards. B. The oxygen gauge should be checked daily, not weekly, to monitor levels. C. The oxygen tank should be placed away from curtains or drapes to reduce the risk of fire. D. The oxygen tank wrench should be readily accessible in case of emergencies.