The nurse is providing discharge instructions for a client with metastatic cancer who is prescribed morphine for bone pain. Which information from the client indicates to the nurse an understanding of the medication?

A. Morphine often causes constipation, so monitoring bowel movements and using a stool softener is an appropriate and necessary part of managing this side effect. B. While agitation and insomnia might be side effects of morphine, they are not the most critical concerns related to its use. C. Taking a benzodiazepine with morphine can increase the risk of severe side effects like respiratory depression and should generally be avoided unless specifically prescribed by the healthcare provider. D. Grapefruit juice is not known to interact significantly with morphine, so this instruction is not relevant.