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
Antiepileptic drug not associated with enzyme induction or inhibition propey is ? 
Select and explain. 
A. Phenytoin, B. Valproate, C. Carbamazepine, D. Ethosuximide
D: Ethosuximide
Answer: D: Ethosuximide 
Explanation: Ans. is 'd' i.e., Ethosuximide