FLEDGE supports re-engagement with users based on their actions on a website or app.

• Calculates users’ top five most frequented topics based on the participating sites they’ve visited.
• Matches conversion events to the initial ad logged, giving it partial credit.
• Measures user behavior online and replaces third-party cookies.
• Supports re-engagement with users based on their actions on a website or app.

The correct answer is: Supports re-engagement with users based on their actions on a website or app

Explanation: FLEDGE (First Locally-Executed Decision over Groups Experiment) supports re-engagement with users based on their actions on a website or app. It allows advertisers to show ads to users who have previously expressed interest in a product without tracking their behavior across different websites. This privacy-preserving technology stores remarketing list membership locally on the user’s browser or device and uses on-device auctions to determine which ads to display, ensuring user privacy.

Reference article: Third-Party Cookie Deprecation: Privacy Sandbox Spotlight