This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Obstetrics, Subject name: Social & Preventive Medicine
[{'content': "In MCH programme, best indicator for mother and child health - \nSelect and explain. \nA. MMR, B. IMR, C. Still birth rate, D. Neonatal mortality' rate", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., IMRo IMR is best indicator for:-Health status of a community.Level of living.Effectiveness of MCH services.o IMR is second best indicator of socioeconomic status ofcountry (under 5 mortality rate is more refined indicator for socioeconomic status).", 'role': 'assistant'}]