A nurse is obtaining a medical history from a client who is requesting a prescription for bupropion for smoking cessation. Which of the following assessment findings in the client's history should the nurse report to the provider?

A. Hypothyroidism is not a contraindication for taking bupropion. B. Knee arthroplasty does not impact the safety of bupropion use. C. A recent head injury is a contraindication for bupropion use because it can lower the seizure threshold, which increases the risk of seizures. D. Hepatitis B infection does not directly interact with bupropion, making this a non-relevant contraindication.