Which of these tasks can be performed using audience triggers?

Audience triggers allow you to automatically create a new event when a user meets the criteria for a specific audience. This is useful for tracking user milestones or specific behaviors within an audience. For example, you could trigger an event when a user enters an "High-Value Customers" audience. Creating new events based on existing event parameters is done through event modification or creation, not audience triggers. Creating new audiences based on specific events or predictive metrics is done directly within the audience builder, not via audience triggers.