Which of the Following Statements Is True of Division of Labor

 Which of the following statements is true of division of labor?

A) Horizontal specialization refers to how much an employee creates, executes, and administers activities in a certain area of the firm.
B) The repetitive nature of specialized jobs lends itself to quick and efficient training of new resources.
C) Extreme job specialization tend to increase the level of job satisfaction among workers.
D) Vertical specialization refers to the breadth of activities that are performed in a certain job.