**Core Concept**
Alcohol withdrawal is a complex clinical condition requiring careful management to prevent severe complications, including seizures and delirium tremens. Various pharmacological agents are employed to mitigate the symptoms of alcohol withdrawal, and understanding the appropriate use of these medications is crucial for effective patient care.

**Why the Correct Answer is Right**
The primary goal of pharmacotherapy in alcohol withdrawal is to alleviate symptoms and prevent seizures. Benzodiazepines, such as diazepam and chlordiazepoxide, are the cornerstone of treatment due to their efficacy in reducing anxiety, agitation, and seizure risk. The mechanism of action involves modulation of the gamma-aminobutyric acid (GABA) receptor, enhancing inhibitory neurotransmission and reducing neuronal excitability. This leads to a decrease in the severity and frequency of withdrawal symptoms.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because benzodiazepines are not the only class of medications used in alcohol withdrawal. However, they are the primary treatment choice due to their efficacy and safety profile.
**Option B:** This option is incorrect because other medications, such as barbiturates, are not commonly used in alcohol withdrawal due to their potential for abuse and overdose.
**Option C:** This option is incorrect because anticonvulsants, such as carbamazepine, may be used in certain cases of alcohol withdrawal to prevent seizures, but they are not the primary treatment choice.

**Clinical Pearl / High-Yield Fact**
One key point to remember is that benzodiazepines should be tapered gradually to prevent rebound symptoms and withdrawal in patients undergoing treatment for alcohol withdrawal.

**Correct Answer:** B.