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': 'Congenital Anomaly produced by lithium therapy is : \nSelect and explain. \nA. Limb shortening, B. Anencephaly, C. Heart block, D. Renal agenesis', 'role': 'user'}, {'content': "Answer: C \nExplanation: Intake of lithium in pregnancy can cause congenital heart disease (Ebstein's anomaly) in the fetus.", 'role': 'assistant'}]