Final answer:
option b,When the demand for labor increases before wages can adjust, it leads to a shortage of workers and a subsequent rise in the equilibrium wage, as employers compete to attract more employees.
Step-by-step explanation:
If the demand for labor increases before wages can adjust, there will be a shortage of workers, and then the equilibrium wage will rise (answer d). This occurs because an increase in labor demand shifts the demand curve to the right, leading to more employment at the original wage level. However, since there are more jobs than workers, this puts upward pressure on wages as employers compete to attract the necessary employees. As wages rise, the labor market moves towards a new equilibrium with a higher wage level and increased quantity of labor hired.
When the demand for labor increases before wages can adjust, it results in a shortage of workers. This means that there are more job openings than there are people available to fill them. As a result, employers will need to increase wages in order to attract workers, and the equilibrium wage will rise. So the correct answer is (d) shortage of workers, and then the equilibrium wage will rise.