How are baselines established and used in Query Viewers?

A.
Baselines are created using query results. The baseline from the query is used to create
a new field set definition that can be run against future events.

B.
Baselines are created using query results. When a query has one or more baselines
available, you can compare the current results with the baseline.

C.
Baselines are created using query results and fed into the Image Editor for the related
Data Monitor.

D.
Baselines are created using rules. After the rule is triggered, the resulting action
establishes a baseline against which future rules are evaluated in the Query Viewer.

Explanation: