## **Core Concept**
The question tests knowledge of pharmacological management of alcohol withdrawal syndrome, a condition that occurs when an individual abruptly stops or significantly reduces alcohol consumption after prolonged use. Alcohol withdrawal can lead to severe symptoms, including tremors, seizures, and delirium tremens. Medications used in de-addiction aim to alleviate these symptoms and facilitate a safe withdrawal process.

## **Why the Correct Answer is Right**
Benzodiazepines are the primary drugs used to manage alcohol withdrawal symptoms. They act on the **GABA (gamma-aminobutyric acid) receptors** in the brain, enhancing the effect of GABA, the major inhibitory neurotransmitter. This action helps counteract the hyperexcitability seen in alcohol withdrawal. **Diazepam (Option C)** is a benzodiazepine commonly used for this purpose due to its long half-life, which allows for smoother tapering of doses and effective control of withdrawal symptoms.

## **Why Each Wrong Option is Incorrect**
- **Option A:** While certain beta-blockers and clonidine can be used to manage some symptoms of alcohol withdrawal (like hypertension and anxiety), they do not prevent the underlying withdrawal process and are not the primary drugs of choice.
- **Option B:** Although disulfiram is used in the treatment of chronic alcoholism, it works by deterring alcohol consumption through unpleasant reactions to alcohol, not by preventing withdrawal symptoms.
- **Option D:** Naltrexone is used in the management of alcohol dependence but works by reducing the reinforcing effects of alcohol, not by preventing withdrawal symptoms.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that benzodiazepines are the first-line treatment for alcohol withdrawal syndrome, particularly for patients with a history of seizures or severe withdrawal symptoms. **Diazepam** is often preferred due to its pharmacokinetic profile.

## **Correct Answer:** C. Diazepam.