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': 'Drug which should not be used in Absence seizures \nSelect and explain. \nA. Ethosuximide, B. Valproate, C. Vigabatrin, D. Phenytoin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Phenytoin & carbamazepine are contraindicated\xa0in absence seizures & myoclonic epilepsy.', 'role': 'assistant'}]