This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Development and Epidemiology, Subject name: Pediatrics
WHO defi nes adolescent age between - 
Select and explain. 
A. 10-19 years, B. 10-14 years, C. 10-25 years, D. 9-14 years
A: 10-19 years
Answer: A: 10-19 years 
Explanation: Ans. is 'a' i.e., 10-19 years o Adolescence is usually the period 10 to 20 yr.