The nurse assesses a client who recently began experiencing violent nightmares. Which factor in the client’s history should the nurse further explore?

A. A family history of dementia may be relevant but is not typically associated with violent nightmares. Alcohol use is more directly related to this symptom. B. Witness to an accident may be a traumatic experience, but it does not specifically address the symptom of violent nightmares. C. Alcohol use can contribute to sleep disturbances, including nightmares. Exploring the client's alcohol use is essential in understanding the cause of the nightmares. D. Inadequate diversional activity is a broad concept and may not be directly related to the specific symptom of violent nightmares.