Final answer:
Jack was fulfilling the role of an authoritarian manager.
Step-by-step explanation:
When Jack told the employees to do their re-shelving the right way and did not respond sympathetically to their complaints, he was fulfilling the role of an authoritarian manager. An authoritarian manager is task-oriented and focuses on making sure the job is done correctly, often without considering the concerns or feelings of the employees. In this scenario, Jack's main priority was to ensure that the re-shelving was done properly, even if it meant dismissing the employees' complaints.