- Display & Video 360 line item filtering
- Data pass
- Dynamic targeting keys
The correct answer is: Dynamic targeting keys
Explanation: Dynamic targeting keys are unique, friendly labels that can be assigned to ads, creatives and placements and used for targeting with Studio dynamic creatives. Use these labels to save time and avoid the errors that may arise when you use numeric Campaign Manager IDs (such as placement IDs) in your dynamic feeds.
Read more here:https://support.google.com/richmedia/answer/6317995