In Intervening to Promote Ambulation, Coughing, Deep Breathing, and Turning

In intervening to promote ambulation, coughing, deep breathing, and turning by a postoperative patient on the first postoperative day, which action by the nurse is most helpful?

A) Teach the patient the purpose of respiratory care and ambulation.
B) Give the patient positive reinforcement for accomplishing these activities.
C) Administer ordered analgesic medications before these activities.
D) Discuss the complications of immobility and poor cough effort.