A nurse is caring for a client who has pneumonia and a prescription for oxygen therapy at 5 L/min via nasal cannula. Which of the following actions should the nurse take?

Secure the oxygen tubing to the bed sheet near the client's head.

Attach a humidifier bottle to the base of the flow meter.

Remove the nasal cannula while the client eats.

Apply petroleum jelly to the nares as needed to soothe mucous membranes.