To automate an action for an alert, you must enable it in the object's associated policy. A policy defines the settings and rules that vRealize Operations applies to objects in your environment. You can activate actionable alerts in your policies by selecting the Automate option for the alert definition that is associated with the symptom, recommendation, and action that you want to automate. When an alert is triggered that is associated with the recommendation, it triggers the action without any user intervention. The other options are not correct because they do not enable the automation of the action. An object's associated recommendation is a suggestion for resolving the problem indicated by the alert, but it does not activate the action. An object in the default policy is not specific enough to enable the automation of the action. An object's associated symptom definition is a condition that indicates a potential problem, but it does not activate the action. References: Actions Supported for Automation, VMware vRealize Operations Actions