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: Medicine
Anti-epileptic which is not associated with congenital malformation when used in pregnant woman is: 
Select and explain. 
A. Phenytoin, B. Phenobarbitone, C. Carbamazepine, D. Valproate
B: Phenobarbitone
Answer: B: Phenobarbitone 
Explanation: Phenobarbitone is considered as safest antiepileptic drug in pregnancy.