In ServiceNow Flow Designer, anApplication-based triggeris used to initiate a flow based on events from a specific application. Before using an application-based trigger, you must ensure that the necessaryapplication spokeand any requiredplug-insare activated. Application Spokes: Spokes are pre-built integration modules that allow Flow Designer to interact with different applications within ServiceNow. Each application that provides triggers typically has its own spoke. Plug-ins: Some application spokes rely on additional plug-ins for full functionality. These plug-ins must be enabled before the application-based triggers can be used. A: Activate application trigger spoke# Incorrect There is no generic "Application Trigger Spoke." Instead, each application has its own spoke that must be enabled. B: Activate trigger security rules# Incorrect Security rules govern access to triggers, but they do not enable the functionality of application-based triggers. D: Assign Application trigger role [sn_app_trigger_write] to SME# Incorrect Roles likesn_app_trigger_writemay provide permissions but do not activate the trigger itself. E: Activate application plugins only# Incorrect While plug-ins may be necessary, you also need to activate the corresponding spoke. Reference:ServiceNow Docs: Flow Designer Application Spokes ServiceNow Docs: Activating Plug-ins ServiceNow CSA Official Study Materials (Application-based triggers in Flow Designer)