The change management service component in the operate phase provides which possible benefit?

A.
ensures the accuracy, completeness, and timeliness of information on the network

B.
contributes to reducing operating costs by providing a consistent framework for making necessary changes in an efficient and accountable manner

C.
notifies interested parties of problems identified, and escalates per customer requirements

D.
improves system service quality and reduces disruptions

E.
promotes productivity and efficiency in operations processes by enhancing control over the configuration of network devices and providing access to vital configuration data