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: At birth, the average height of a child is 50 cm.
            During first year height increases about 50% of birth height (25 cm).