This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Social & Preventive Medicine
[{'content': 'According to WHO, MMR is \nSelect and explain. \nA. Death immediately after the delivery, B. Death after 42 days, C. Death after 30 days, D. Death after 7 days', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (B) Death after 42 days > Late maternal death: A late maternal death is the death of a woman from direct or indirect obstetric causes more than 42 days but less than one year after termination of pregnancy.', 'role': 'assistant'}]