This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Demography and family planning, Subject name: Social & Preventive Medicine
[{'content': 'In calculating Dependency Ratio, the numerator is expressed as \nSelect and explain. \nA. Population under 10 years and 60years above, B. Population under 15 years and 60years above, C. Population under 10 years and 65years above, D. Population under 15 years and 65years above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The propoion of persons above 65 years of age and children below 15 years of age are considered to be dependent on the economically productive age group. The ratio of the combined age groups 0-14 years plus 65 years and above to the 15-65 years age group is referred to as the total dependency ratio. Reference : Park&;s textbook of preventive and social medicine, 23rd edition , pg no:484', 'role': 'assistant'}]