The Division of Labor Facilitates Productivity Increases for All of the Following

The division of labor facilitates productivity increases for all of the following reasons, except for one. Which of the following is the exception?

A) It allows people to perform those tasks for which they have the greatest natural ability.
B) Workers get better at tasks the more they repeat them.
C) The more experience workers gain by specializing in a task, the more likely they will enjoy performing that task.
D) Greater experience at a task leads to the introduction of more sophisticated production techniques.
E) It often permits the introduction of labor-saving machinery.