What is the IBM Tivoli Netcool Service Extension (NSE) service used for?

A.
The NSE is used to include network provisioning as part of cloud service delivery.

B.
The NSE is an API that allows the creation and configuration of network manager
domains.

C.
The NSE is used by IBM Tivoli Netcool Performance Manager to create composite subelements to represent combined service metrics.

D.
The NSE is the Open Services Lifecycle Interface of IBM Tivoli Netcool/OMNIbus and
provides a structured open interface to extract event data out of the ObjectServer.