To calculate a country's dependency ratio, one needs to know the country's population and
A) the number of children still receiving financial support from their parents.
B) the number of people who are actively looking for work but are unable to find it.
C) all of a country's population younger than age 15 or older than age 64.
D) the number younger than age 15.
E) the number older than age 64.
Answer: C
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