This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epilepsy, Subject name: Pharmacology
Which antiepileptic drug is least secreted in breast milk - 
Select and explain. 
A. Ethosuximide, B. Clonazepam, C. Gabapentin, D. Carbamazepine
B: Clonazepam
Answer: B: Clonazepam 
Explanation: Ans. is 'b' i.e., Clonazepam DrugBreast milk to plasma concentrationCarbamazepine0-69Clonazepam033Ethosuximide0-94Gabapentin0-7-1-3Lamotrigine0-057-1-47Phenobarbitone0-4-0-6Phenytoin018-0-45Primidone0-72Topiramate0-86-1-1Valproate0-42Zonisamide0-93