A nurse is reinforcing teaching with a client who has type 1 diabetes mellitus. Which of the following statements from the client indicates to the nurse the teaching is effective?

A. Rotating injection sites within recommended areas—abdomen, thigh, or back of the arm—helps ensure consistent absorption and prevents lipodystrophy, indicating correct understanding. B. Insulin should never be frozen; freezing can destroy its effectiveness. C. Insulin doses should not be increased if a meal is missed, as this may cause hypoglycemia. D. Priming an insulin pen is correct, but typically only 2 units are recommended for most pens, depending on manufacturer instructions; the focus on injection site rotation is the key indicator of effective teaching.