The U.S. unemployment rate is a key economic indicator because most of us need jobs to maintain our standard of living. A criterion used to calculate the unemployment rate is _________.
a) anyone under the age of 60 who does not have a job and lives within the physical borders of the U.S.
b) persons who were dismissed from their last job, and subsequently have been out of work for over a year
c) unemployed persons age 16 and over, who have been looking for work during the past four weeks
d) all persons claiming not to have a job, except students; full-time and part-time students are excluded from the calculation
Answer: c