This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Non-Communicable Diseases, Subject name: Social & Preventive Medicine
(Weight = Height - 100) denotes which formula/ index- 
Select and explain. 
A. Corpulence index, B. Broca index, C. Lorentz's formula, D. Ouetlef s index
B: Broca index
Answer: B: Broca index 
Explanation: Ans. is 'b' i.e., Broca index o Has been explained in All India Dec-15