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': 'Lithium is treatment of choice for -\na) Unipolar MDP prophylaxis\nb) Bipolar MDP prophylaxis\nc) Schizophrenia\nd) Acute mania \nSelect and explain. \nA. abc, B. bd, C. bcd, D. ac', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Most important indications of lithium are treatment of acute mania and prophylaxis of bipolar mood disorder, i.e. manic - depressive illness.', 'role': 'assistant'}]