What is the definition of an Alert?

A.
An error message to the user of an application
B.
A warning that a threshold has been reached or that something has changed
C.
A type of Incident
D.
An audit report that indicates areas where IT is not performing according to agreed procedures
Alert
(Service Operation) A warning that a threshold has been
reached, something has changed, or a Failure has
occurred. Alerts are often created and managed by System
Management tools and are managed by the Event
Management Process.