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: Pharmacology
Most important factor for calculating dose for NSAIDS in children? 
Select and explain. 
A. Age of child, B. Body weight of child, C. Flavour of salt, D. Extent of pain
B: Body weight of child
Answer: B: Body weight of child 
Explanation: None