Concept:The dependency ratio compares those who are too young or too old to work with the working-age population they rely on.
Explanation:Dependents are people who are usually outside the labour force because of their age.
They include children and the elderly or aged persons.
The active population, often those aged roughly
15 to
64 years, supports these dependents.
A higher dependency ratio means more dependents are being supported by fewer workers.
A lower ratio means fewer dependents relative to the working-age population.
Thus, the dependency ratio of a country refers to the children and aged who rely on the active population for support.
Answer:Option A: the children and aged who rely on the active population for support.