Final answer:
The HR generalist should recommend that the manager individually reset expectations with the employee in person to address the issue of extended lunches.
Step-by-step explanation:
The HR generalist should recommend option D, which is to advise the manager to individually reset expectations with the employee in person.
This approach allows the manager to have a direct and private conversation with the employee to address the issue of extended lunches. By resetting expectations, the manager can clarify the organization's policies and the importance of adhering to scheduled working hours. This approach also gives the employee an opportunity to provide any necessary explanations or discuss any accommodations they might require.
It's important for the manager to address this issue promptly to ensure the morale of the team remains intact and to establish her effectiveness as a manager.