Which enhancement is added to the IBM Tivoli Monitoring V6.3 (ITM) agent for UNIX OS?

A.
Support for self-describing agents.

B.
Support of monitoring file systems of the NES.

C.
New TM capability to perform prerequisite checking for agents before performing an installation.

D.
A variety of metrics have been ported from the AIX Premium agent to the TM agent for UNIX OS.