When scheduling creatives within Campaign Manager 360,what's one thing you need to do to make sure an appropriate ad will run everytime?

To ensure that an appropriate ad will run everytime when scheduling creatives within Campaign Manager 360,the correct approach is to"Create a default ad so that any audience can view it if it needs to be shown."This method involves setting up a default ad within the campaign that serves as a fallback option in case specific targeting criteria are not met or if there are no other region-specific creatives available.By having a default ad in place,Campaign Manager 360 can display this ad to any audience segment that doesn't match the criteria of other targeted ads,ensuring continuous ad serving and maximizing campaign reach.This strategy is crucial for maintaining ad visibility and ensuring that the campaign maintains its intended reach and frequency goals across diverse audience segments.Therefore,this option correctly identifies the need for a default ad to handle scenarios where targeted creatives may not be applicable or available,there by ensuring consistent ad delivery within Campaign Manager360.