This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Pharmacology
[{'content': 'Drug of choice in treatment of partial complex seizures \nSelect and explain. \nA. Carbamazepine, B. Sodium valproate, C. Ethosuximide, D. Phenytoin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a (Carbamazepine). (Ref. Harrison, Internal Medicine, 16th ed., 1848)Type of seizurePrimary generalized tonic clonic seizurePartial complex seizuresAbsence seizureAtypical absence;Myoclonic; Atonic* First line treatmentValproic acidCarbamazepineEthosuximideValproic acidPhenytoin Valproic acid Valproic acid Lamotrigine * Valproate is broad spectrum anti-epileptic.', 'role': 'assistant'}]