This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Health Education & Health Planning, Subject name: Social & Preventive Medicine
Body mass index is calculated by: 
Select and explain. 
A. (Weight in Kg/Height in meters2), B. (Weight in Kg/Height in meters3), C. (Weight in Kg2)/Height in meters2), D. (Weight in Kg2 x Height in meters2)
A: (Weight in Kg/Height in meters2)
Answer: A: (Weight in Kg/Height in meters2) 
Explanation: Ans. (a) (weight in Kg/Height in meters2)Ref : K. Park 23rd ed. / 399-400