A nurse is providing teaching to an adolescent who has type 1 diabetes mellitus. Which of the following should the nurse include in the teaching?

A. Glucagon is used to treat severe hypoglycemia, not hyperglycemia. B. Glyburide is an oral antidiabetic medication used to treat type 2 diabetes and is not appropriate for individuals with type 1 diabetes. C. Annual influenza vaccination is recommended for individuals with type 1 diabetes, as they are at increased risk for complications from influenza. D. Insulin should be injected into subcutaneous tissue, commonly in areas like the abdomen or thigh—not into the deltoid muscle.