Which two statements are true regarding the Active Session History (ASH) reports for RAC?

A.
They report on data captured for active sessions. The volume of data is directly related to
the work being performed by sessions.

B.
They report on data captured for active sessions. The volume of data is directly related to
the number of sessions on the system.

C.
They provide statistics about Oracle databases for the active sessions on all the RAC
nodes.

D.
They provide details about Oracle databases for all current sessions, and history of past
session all RAC nodes.