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 reduced to - \nSelect and explain. \nA. 100, B. 200, C. 300, D. 400', 'role': 'user'}, {'content': "Answer: B \nExplanation: In 2008,a global reduction in maternal death to 200 is estimated.REF.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-515.", 'role': 'assistant'}]