This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Growth, Subject name: Pediatrics
Height of children in 2 - 10 years of age is increased by: 
Select and explain. 
A. 2cm/year, B. 4cm/year, C. 6cm/year, D. 10cm/year
C: 6cm/year
Answer: C: 6cm/year 
Explanation: Height Velocity in Children: Age Normal range 2 - 5 years 6 cm/ year* 5 - 10 years 5-6 cm/year