A nurse is caring for a client who is receiving treatment for chronic alcohol use disorder. Which of the following medications should the nurse plan to administer to assist the client in maintaining abstinence by aversion therapy?

The correct answer is B: Disulfiram. Disulfiram is used in aversion therapy for alcohol use disorder by causing unpleasant effects like nausea, vomiting, and flushing if alcohol is consumed. This helps the client associate alcohol intake with negative consequences, promoting abstinence. Carbamazepine (A) is used for seizures and mood disorders, not for aversion therapy. Atenolol (C) is a beta-blocker used for hypertension, not for aversion therapy. Lorazepam (D) is a benzodiazepine used for anxiety, not for aversion therapy.