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

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

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