According to the VMware vRealize Operations User Guide1, an automated action is a predefined or custom action that can be executed automatically when an alert is triggered. An automated action can help to resolve or prevent the problem that caused the alert, or to notify the relevant stakeholders. To allow an automated action to be triggered from an alert, two conditions must be met:
Within the active policy, the alert definition's automated setting must be set to enabled. This allows the alert definition to trigger automated actions when the alert criteria are met. By default, the automated setting is disabled for all alert definitions, and must be manually enabled by the administrator.
The alert must have a recommendation attached to it. A recommendation is a suggested action that can help to resolve or prevent the problem that triggered the alert. A recommendation can include a link to a related topic in the documentation or an external URL. A recommendation can also be associated with an automated action, which can be executedby the system or by the user. An alert definition can have one or more recommendations, but only one of them can be associated with an automated action.
Therefore, the correct answers are B.
Within the active policy, the alert definition's automated setting must be set to enabled. and E.
The alert must have a recommendation attached to it, as these are the two conditions that must be met to allow an automated action to be triggered from an alert. References:
1: VMware vRealize Operations User Guide,
https://docs.vmware.com/en/vRealize-Operations/8.5/vrealize-operations-manager-85-user-guide.pdf, page 21-22, 25-26, 29-30