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: Psychiatry
[{'content': "Use of lithium in pregnancy can result in which of the following abnormalities in the baby? \nSelect and explain. \nA. Anencephaly, B. Ebstein's anomaly, C. Caudal dysgenesis syndrome, D. Elfin facies", 'role': 'user'}, {'content': "Answer: B \nExplanation: Lithium usage in pregnancy can lead to Ebstein's anomaly cardiovascular defects.", 'role': 'assistant'}]