To Promote Deep Breathing, Coughing, and Turning by a Postoperative

To promote deep breathing, coughing, and turning by a postoperative client on the first postoperative day, what would be the best action by the nurse?

A) Teach the client the purpose of respiratory care and ambulation.
B) Provide constant reinforcement for accomplishing these activities.
C) Assess the client's pain level before these activities.
D) Emphasize the complications of immobility and poor cough effort.