A client has undergone a left hemicolectomy for bowel cancer. Which activities prevent the occurrence of postoperative pneumonia in this client?
a) Administering oxygen, coughing, breathing deeply, and maintaining bed rest
b) Coughing, breathing deeply, maintaining bed rest, and using an incentive spirometer
c) Coughing, breathing deeply, frequent repositioning, and using an incentive spirometer
d) Administering pain medications, frequent repositioning, and limiting fluid intake