Correct Answer: Working fewer hours than required

Solution : The correct answer is (b) Working fewer hours than required

Underemployment occurs when individuals are employed, but their level of employment or the number of hours they work is less than what they desire or need. It implies that individuals are not fully utilizing their skills, qualifications, and availability to work due to insufficient work opportunities or part-time employment. Underemployment can have adverse effects on income, job satisfaction, and overall economic productivity.