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: Dental
According to NACO 2011, prevalence of HIV affected people? 
Select and explain. 
A. 0.27, B. 2.14, C. 1.4-1.6, D. 0.53
A: 0.27
Answer: A: 0.27 
Explanation: None