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
A per NFHS III data, the wealthiest state is: 
Select and explain. 
A. Delhi, B. Haryana, C. Punjab, D. Goa
A: Delhi
Answer: A: Delhi 
Explanation: Delhi has the highest percentage of population (70%) in the highest quintile of wealth index, followed by Goa (55%). States with low wealth index include Chhattisgarh and Orissa. Ref: Park 21st edition page: 639.