A home health nurse is teaching a client who has a new diagnosis of diabetes mellitus. Which of the following statements by the client indicate an understanding of the teaching?

Rationale: A. "I will take my insulin 30 minutes before exercise.": Administering insulin before exercise can increase the risk of hypoglycemia, especially if the timing and intensity of activity are not carefully managed. Exercise generally lowers blood glucose, so insulin doses may need adjustment rather than a fixed pre-exercise schedule. B. "I will limit my fluid intake to 1 liter daily.": Limiting fluids is inappropriate for clients with diabetes, as adequate hydration is important for maintaining kidney function and preventing hyperglycemia-related dehydration. Fluid restriction can worsen hyperglycemia and increase the risk of complications. C. "I will eat a low-residue diet.": A low-residue diet is not standard for diabetes management. Nutritional guidance focuses on carbohydrate counting, balanced intake of macronutrients, and maintaining consistent blood glucose levels rather than restricting fiber or residue in the diet. D. "I will use a mirror to inspect my feet daily.": Daily foot inspection is essential for clients with diabetes to detect early signs of skin breakdown, ulcers, or infection. Using a mirror allows the client to examine areas that are difficult to see, such as the soles, between toes, and heels, helping prevent complications like diabetic foot ulcers.