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': 'With chronic use in seizure state, the adverse effects of this drug include coarsening of facial features,hirsutism, gingival hyperplasia and osteomalacia: \nSelect and explain. \nA. Carbomazepine, B. Ethosuximide, C. Gabapentin, D. Phenytoin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]