Answer:
B
Step-by-step explanation:
Wages are sticky when earnings do not adjust quickly to changes in the market conditions .In some other situations , the rate of can be too slow compared to the rate of changes in the market. That means that every single time that market prices change , wages remain the same or just have a marginal change.
Factors that trigger sticky wages are unemployment ,and roles of the labor union.
Sticky wages can be useful in the sense that it can explain why market might not reach equilibrium in the short run or even in the long run.