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
Dependency ratio includes - 
Select and explain. 
A. Less than 15 years, B. Less than 85 years, C. 30-50 years, D. None
A: Less than 15 years
Answer: A: Less than 15 years 
Explanation: Numerator in dependency ratio is age group less than 15 years (0-14 years) and more than 65 years.