**Core Concept**
The management of alcohol withdrawal symptoms involves medications that can mitigate the severity of symptoms, such as tremors, agitation, and seizures. Antiepileptic drugs (AEDs) are often used in this context due to their ability to stabilize neuronal excitability.

**Why the Correct Answer is Right**
The correct answer is **B. Carbamazepine**. Carbamazepine is an AED that has been shown to be effective in managing alcohol withdrawal symptoms. It works by stabilizing inactivated sodium channels, thereby reducing the frequency of action potentials and subsequent neuronal excitability. This mechanism is particularly useful in mitigating the symptoms of alcohol withdrawal, such as tremors and seizures. Additionally, carbamazepine has a relatively favorable side effect profile compared to other AEDs, making it a preferred choice for this indication.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because benzodiazepines, such as diazepam, are the first-line treatment for alcohol withdrawal symptoms, not AEDs.
* **Option C:** This option is incorrect because phenytoin is an AED, but it is not typically used for the management of alcohol withdrawal symptoms due to its side effect profile and the availability of more effective alternatives.

**Clinical Pearl / High-Yield Fact**
It's essential to note that carbamazepine can be used in the management of alcohol withdrawal symptoms, but it should be used with caution, especially in patients with a history of liver disease or those taking other medications that can interact with carbamazepine.

**Correct Answer: B. Carbamazepine**