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: Medicine
[{'content': 'In case of hepatic porphyria the safe anti convulsant- \nSelect and explain. \nA. Phenytoin, B. Carbamazepine, C. Valparate, D. Paraldehyde', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]