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
Infants constitute what % of population? 
Select and explain. 
A. 2, B. 3, C. 4, D. 5
B: 3
Answer: B: 3 
Explanation: Ans. is 'b' i.e., 3