If using media targeting with DCO campaign,which of the following scenarios best describes the setup where a single creative version is applied to a single targeted placement audience?

The correct answer describes a scenario where a single creative version is applied to a single targeted placement audience. Geo-targeting is a common application of DCO where specific creative versions (e.g., featuring store-specific promotions or addresses) are served to users within a defined geographical area, effectively creating a single audience segment (users near a specific store) that receives a single, relevant creative. The incorrect option, "A cosmetic brand wants to display items based on buyers' preferences and avoid items they may already own," describes a scenario that would likely involve multiple creative versions and more complex audience segmentation based on individual user data (purchase history, browsing behavior), rather than a single creative for a single placement audience. This would typically require a more dynamic and personalized approach, potentially serving many different creative variations to many different individual users, not a single creative to a single placement audience.