Final answer:
The HR generalist should suggest option C, which is to note the date and time the employee agrees to the policy and send a recap e-mail to the employee. This ensures clear documentation of the agreement.
Step-by-step explanation:
The HR generalist should suggest option C. Note the date and time the employee agrees to the policy and send a recap e-mail to the employee regarding his acknowledgment and the expectations. This action is recommended because it ensures that there is a clear record of the employee's agreement to follow the policy. By sending a recap e-mail, both the employee and the manager have written documentation of the agreement, which can be used for future reference if needed. Additionally, this action shows the employee that his compliance with the policy will be monitored and documented. This can help reinforce the manager's expectations and potentially discourage the employee from continuing to take extended lunches.