Answer:
d. All of the above are correct.
Explanation:
The people who are looking for job are considered unemployed for the time they are seeking for a job.
Also, from the person perspective is looking for a job which matches their expectation. So it will be looking until find something suitable for their desires.
If all works were the same then, it would be no job search as all the workers will apply for the same job and called from the pool of workers when needed.
