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: Dental
[{'content': 'Consumption of which of following drugs in pregnancy causes Ebstein anomaly in newborn? \nSelect and explain. \nA. Alcohol, B. Phenytoin, C. Valproate, D. Lithium', 'role': 'user'}, {'content': "Answer: D \nExplanation: Maternal intake of lithium can cause Ebstein anomaly in newborn.\nEbstein anomaly is a rare heart defect in which the tricuspid valve - the valve between the upper right chamber (right atrium) and the lower right chamber (right ventricle ) of the heart isn't formed properly. As a result, blood leaks back through the valve and into the right atrium.", 'role': 'assistant'}]