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: Pediatrics
Increase in height in first year is by - 
Select and explain. 
A. 40%, B. 50%, C. 60%, D. 75%
B: 50%
Answer: B: 50% 
Explanation: Ans. is 'b' i.e., 50% At bih, the average height of a child is 50 cm. During first year height increases about 50% of bih height (25 cm).