Final answer:
The nurse would expect to teach the diabetic patient about ACE inhibitors and beta blockers.
Step-by-step explanation:
In this case, the nurse would expect to teach the diabetic patient about ACE inhibitors and beta blockers (option a). ACE inhibitors are used to lower blood pressure and reduce the risk of heart attack and stroke, while beta blockers are used to slow the heart rate and decrease the workload on the heart.