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: Social & Preventive Medicine
Which of the following age group comprises the young age dependant population? 
Select and explain. 
A. <10 years, B. <12 years, C. < 15 years, D. < 18 years
C: < 15 years
Answer: C: < 15 years 
Explanation: Children below 15 years and elderly above 65 years comprise the dependent population. Young age dependency is children below 15 years and old age dependency is above 65 years. Ref: Park 21st edition, page 447.