Answer: b. changes in the composition of demand among industries or regions
Explanation: Frictional Unemployment can be described as the unemployment time frame that occurs when workers move from one particular job to another due to a company's change in operations, composition of demand, competitors having an edge, poor management.
Technically, workers can be relieved due to any of these above reasons listed and if that happens, they need to stay unemployed before getting another job. This is called frictional unemployment.
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