Answer:
A Recession happened.
Explanation:
When the market sees a recession we see an increase in the unemployment rate due to cyclical unemployment whenever there in a business cycle even though the labor force was constant but in a recession companies face a lot of costs which become higher than their revenue so for example when there is a recession the cost of producing 1 more unit is actually higher than the revenue a firm gets from producing that 1 unit because marginal cost increases at a decreasing rate so they have to lay off people at a firm on that unit of production to maximize revenues.