This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
Burn of head region in a child accounts for what percent of burns ? 
Select and explain. 
A. 10%, B. 20%, C. 30%, D. 40%
B: 20%
Answer: B: 20% 
Explanation: Children have relatively larger propoion of body surface area in their head and neck, which is compensated by a relatively smaller surface area in the lower extremities In infants Head and neck : 21% Each leg: 13% Berkow formula is used to accurately determine burn size in children Body pa 0-1 year 1-4 years 5-9 years Head 19 17 13 Neck 2 2 2 Anterior trunk 13 13 13 Posterior trunk 13 13 13 Ref: Sabiston 20th edition Pgno :508