Answer:B. are always completely flexible
Explanation:The classical theory proposes that all markets reequilibrate because of adjustments in prices and wages which are flexible. For instance, if an excess in the labor force or products exist, the wage or price of these will adjust to absorb the excess. If prices and wages are flexible, markets reequilibrate.
Wages are said to be flexible when they respond to changes in supply and demand and lead to the market clearing wage being set. It implies that the wage will be set by the Marginal Revenue Product of labour and marginal cost of labour. Any change in supply and demand for labour will lead to a change in the wage rate.
The importance of wage flexibility arises from the fact that, in most macroeconomic models, we find an inverse relationship between wages and employment.
