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: Social & Preventive Medicine
[{'content': 'Mainly included in child survival index ? \nSelect and explain. \nA. MMR, B. IMR, C. Moality between 1 to 4 yr. age, D. Under 5 moality', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Under 5 moality", 'role': 'assistant'}]