This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
Drug of choice for absent seizures 
Select and explain. 
A. Clonezapam, B. Diazepam, C. Phenytoin, D. Valproate
D: Valproate
Answer: D: Valproate 
Explanation: Many children appear to have a genetic predisposition to absence seizures. In general, seizures are caused by abnormal electrical impulses from nerve cells (neurons) in the brain. Ref: KD Tripathi 8th ed.