Final answer:
The nurse will teach the importance of coughing and deep breathing exercises after outpatient cataract surgery and lens implantation.
Step-by-step explanation:
After a patient has had outpatient cataract surgery and lens implantation, the nurse will most likely teach the importance of coughing and deep breathing exercises (option c).
Coughing and deep breathing exercises are important after surgery because they help prevent complications such as atelectasis (collapsed lung) and pneumonia. These exercises help clear the lungs, promote lung expansion, and improve oxygenation.