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
Mainly included in child survival index ? 
Select and explain. 
A. MMR, B. IMR, C. Moality between 1 to 4 yr. age, D. Under 5 moality
D: Under 5 moality
Answer: D: Under 5 moality 
Explanation: Ans. is 'd' i.e., Under 5 moality