How is event enrichment and correlation implemented in an IBM Tivoli Business Service Manager
V6.1 (TBSM) installation?

A.
by using IBM Tivol Netcool/lmpact policy

B.
by customizing the event.rls files in the TBSM Data Server

C.
by installing the optional TBSM event management component

D.
by customizing certain xml files used by the TBSM Discovery Library Toolkit

Explanation: