A nurse is providing teaching about self-administration of insulin to the parent of a school-age child who has a new of diabetes mellitus. Which of the following statements by the parent indicates a need for further teaching?

A. This indicates a need for further teaching. Aspiration (pulling back on the syringe plunger to check for blood) is not recommended for subcutaneous insulin injections. It is unnecessary and can cause tissue trauma. B. This is appropriate when using shorter needles or when injecting into areas with sufficient subcutaneous tissue. C. Insulin should be administered into subcutaneous (fatty) tissue, and several appropriate sites are available (e.g., abdomen, thighs, upper arms). D. Site rotation is important to prevent lipodystrophy. Injecting 4–6 times in one area before moving to another is acceptable, provided sites are rotated within that area.