A nurse is preparing to administer an insulin injection for a client. Which of the following actions should the nurse take?

A. Administer the insulin using a tuberculin syringe at a 15° angle: Tuberculin syringes are used for intradermal injections, not subcutaneous injections, and insulin is typically administered at a 90° angle. B. Rapidly inject the insulin using a 20-gauge 1-inch needle: A 20-gauge needle is too large for insulin injections, which typically use smaller needles (e.g., 25- to 30-gauge). C. Insert the needle into the right thigh at a 90° angle: Insulin injections are typically administered subcutaneously at a 90° angle, and the thigh is a common injection site. D. Slowly inject the insulin using the Z-track method: The Z-track method is not used for insulin injections, which are administered subcutaneously, not intramuscularly.