This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2019, Subject name: Pharmacology
[{'content': 'Least teratogenic antiepileptic drug in pregnancy is; \nSelect and explain. \nA. Valproate, B. Phenytoin, C. Carbamazepine, D. Levetiracetam', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Anti-epileptic with highest risk of teratogenicity - Valproate - causes neural tube defects Anti-epileptic with lowest risk of teratogenicity- Lamotrigine >Levetiracetam', 'role': 'assistant'}]