Answer:
E a worker decides to quit his current job and look for a new job.
Frictional unemployment occurs when workers are in between jobs or are looking for new jobs. It is typically short-term and occurs as a result of workers leaving one job and searching for another, such as when a worker quits their current job to find a better one. Technological changes, recession, and inflation can lead to other types of unemployment such as structural unemployment and cyclical unemployment.