The Patient Is a 20-Year-Old College Student Who Has Type

The patient is a 20-year-old college student who has type 1 diabetes and normally walks each evening as part of an exercise regimen.The patient plans to enroll in a swimming class.Which adjustment should be made based on this information?

A) Time the morning insulin injection so that the peak action will occur during swimming class.
B) Delete normal walks on swimming class days.
C) Delay the meal before the swimming class until the session is over.
D) Monitor glucose level before,during,and after swimming to determine the need for alterations in food or insulin.