Answer: c. a poor person/job fit
Explanation:
Poor job fit is the term that describes a scenario where an employee is not well suited to the job they are in. They do not like working in the job, and experience no excitement from it much like Mark here.
It is very important that people are well suited to their job because if they aren't, production efficiency is imparted as the employee would not want to do anything to improve the position. Rather, they will do the bare minimum so long as they get through the day and leave the job as soon as possible.