This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: obstetrics,pediatrics and geriatrics, Subject name: Social & Preventive Medicine
[{'content': 'Maternal moality is maximum in which period - \nSelect and explain. \nA. Antepaum, B. Peripaum, C. Postpaum, D. None', 'role': 'user'}, {'content': "Answer: B \nExplanation: Park's textbook of preventive and social medicine 23rd edition. *Maternal deaths mostly occur from 3rd trimester to 1st week after bih.", 'role': 'assistant'}]