According to the definition used by the U. S. Bureau of Labor Statistics, a person is not in the labor force if that person: a) is going to school full time. b) is temporarily absent from a job because of illness. c) has been temporarily laid off. d) is out of a job and was looking for work during the previous four weeks.

Option C is correct

Explanation:

Because according to definition the person who is out of job and is not searching for a job in the past 4 weeks are considered not in labor force. Whereas it must be noted the temporary illness means that the person is employed and the person looking for job us unemployed. Interesting thing in this question is that the person who is going to school can be included in the labor force if he is above 14 and that he is employed in weekends. So the only option correct here is option C.