Answer:
(b) utilize job specialization
Explanation:
These are the options for the question;
(a) make the employee who can diagnose problems the manager
(b) utilize job specialization
(c) utilize job rotation
From the question, we are informed about how Josiah has operated a small mechanic shop for about two years.and how he was able to discover different area of specialization for his employees, in different areas such as welding, removal of the damaged parts, reinstallation of the repaired of new parts.
In this case of Considering the abilities of his employees, the best way for him to streamline his business is utilize job specialization.
Job specialization brings effectiveness as well as efficiency, it is the process in which the employees are able to concentrate on a specific area of the job and allow then to carry the specific role effectively. Job specialization helps in division of task among employee and it increase production as well time management.