- Create new audiences based on predictive metrics
- Create new events based on existing event parameters
- Create new audiences based on specific events that are triggered
- Create new events based on an audience rule being satisfied
The correct answer is: Create new events based on an audience rule being satisfied
Audience triggers let you trigger events when users match the definition of an audience and become members.
You can trigger events, for example, when users reach key milestones like initiating a certain number of sessions or reading a certain number of articles, or crossing conversion thresholds.
Read more here: https://support.google.com/analytics/answer/9934109