What is the labor market classification of each of the following individuals? Be as specific as possible, and explain your answer.
a. Julie has a graduate degree in mechanical engineering. She works full time mowing lawns.
b. Jeff was laid off from his previous job. He would very much like to work at any job, but, after looking for a year, has stopped looking for work.
c. Lan is working 25 hours per week at a bookstore, and has no desire to work full time.
d. Raj has decided to take a year off from work to stay home with his daughter.