Answer:
The correct answer is option C.
Explanation:
Frictional unemployment is a type of involuntary unemployment which is caused because of movements between jobs. Unlike cyclical unemployment, it is not caused by business cycles.
Frictional unemployment is caused for a short term and is inevitable. At any given time, jobs are being created while in other firms jobs are being destroyed. So when a worker is unemployed from a job and is looking for another or is about to join another he/she is considered frictionally unemployed.