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
The upper line in growth cha denotes what percentile of WHO reference standard: March 2005 
Select and explain. 
A. 50th percentile, B. 60th percentile, C. 70th percentile, D. 80th percentile
A: 50th percentile
Answer: A: 50th percentile 
Explanation: Ans. A: 50th percentile The growth cha recommended by the Government of India has 4 reference curves. The topmost curve corresponds to 80% of the median (50th percentile) of the WHO reference standard. Second, third and fouh curve corresponds to 70, 60 and 50% of the median. Area between 80% and 70% lines indicates first degree/ mild malnutrition.