This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': "An antiepileptic drug 'A' can also be used for the treatment of post–herpetic neuralgia and pain due to diabetic neuropathy. Which of the following can be the agent 'A' ? \nSelect and explain. \nA. Carbamazepine, B. Gabapentin, C. Lamotrigine, D. Primidone", 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]