Final answer:
The Incident Database views in the base ServiceNow system typically include aspects like SLAs, metrics, and time worked, crucial for managing and resolving incidents effectively. However, confirmation of exact views requires knowledge of the specific ServiceNow version and configuration.
Step-by-step explanation:
The Incident Database views for the Service Management plugin in the base system as part of a ServiceNow instance include views that are central to the operation and management of incidents. It is vital for professionals working with ServiceNow to understand that these views can help in tracking and resolving incidents effectively. Option 'a' which includes incident_sla, incident_metric, and incident_time_worked comprises of the types of views that can indeed be part of such a system, focusing on service level agreements, performance metrics, and time tracking associated with incident resolution respectively. However, without a specific ServiceNow version, it is not possible to confirm which exact views are available in the base system as these may change with different versions and configurations of the platform.