Final answer:
Option A. Underemployment refers to the situation where individuals work in jobs that do not fully utilize their skills or educational background, or when they work fewer hours than desired.
Step-by-step explanation:
Working at a job for which one is over-qualified, or working part-time when full-time work is desired is called underemployment. This is a condition where individuals are working in a lower paying job, a job with lower status, or for fewer hours than they would prefer, and does not fully utilize their skills and educational background. For instance, a person with a college degree in finance working as a sales clerk is considered underemployed. Those individuals are often counted as employed in statistics, but they represent a form of hidden unemployment, which doesn't always show up in official unemployment figures.