All individuals age 16 and older who are employed in paid positions or who are seeking paid employment.

This is the definition of active population.

The whole working age population (over 16) is divided between actives and inactives. Actives are those who are either employed or actively looking for a job (hence actives comprise both employed and unemployed individuals), while inactives are those who are not employed and are not jobsearching either, for example, students, househusbands or housewives, etc.

Labor Force is the answer

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the correct answer is a