Which benefit can be obtained by using the CHANGE management service component in the operate phase？ Select exactly 1 answer（s） from the following：（）。

A. reduced operating costs， due to a consistent framework for making necessary changes in an efficient and accountable manner
B. greater accuracy， completeness， and timeliness of network configuration information
C. notification provided to interested parties regarding problems that have been identified， and a system that scales with customer requirements
D. improved system service quality and fewer disruptio