What long-term treatment should be administered to prevent withdrawal symptoms in chronic alcoholics?

A. Disulfiram therapy: Disulfiram is used to deter alcohol consumption by causing unpleasant reactions when alcohol is consumed, but it does not prevent withdrawal symptoms. It is started only after detoxification, not as long-term withdrawal prevention. B. Thiamine supplementation: Chronic alcohol use leads to thiamine deficiency, increasing the risk of Wernicke–Korsakoff syndrome. Long-term thiamine supplementation helps prevent neurologic complications that occur during and after withdrawal, making it a key preventive therapy. C. Folic acid only: Folic acid may correct nutritional deficiencies but does not prevent alcohol-related neurologic issues or withdrawal complications. It is supportive therapy rather than a primary intervention for chronic alcohol use. D. Benzodiazepines as needed: Benzodiazepines are used short-term during acute withdrawal to prevent seizures and delirium tremens, not as a long-term preventive treatment. Long-term use risks dependence and does not address nutritional deficits.