This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': 'The following teratogenic effect is seen with which drug? \nSelect and explain. \nA. Amiodarone, B. Lithium, C. Valproate, D. Phenytoin', 'role': 'user'}, {'content': "Answer: B \nExplanation: The picture shows atrial septal defect called ebstein'sanamoly which occurs as teratogenic effect due to lithium usage in pregnancyRef: Katzung 10th ed pg 472", 'role': 'assistant'}]