A nurse is providing teaching to a client who has type 2 diabetes mellitus and is starting to take immediate-release exenatide. Which of the following client statements indicates an understanding of the teaching?

A. "I will discard the open injector pen after two months": The open injector pen should be discarded after 30 days, not two months, to ensure the medication's stability and effectiveness. Keeping it longer may reduce its potency. B. "I will inject the medication into the muscle of my thigh": Exenatide should be injected subcutaneously, not into the muscle. Injecting into the muscle could lead to erratic absorption and reduced medication effectiveness. C. "I will store open injector pens at room temperature": Exenatide should be stored in the refrigerator, not at room temperature. Storing it improperly can lead to a loss of medication potency and affect its therapeutic effect. D. "I will take this medication one hour before morning and evening meals": Immediate-release exenatide should be taken 60 minutes before meals to maximize its effectiveness in controlling post-meal blood sugar levels.