• Search Ads 360 API
• Attribution
• Google Ads API
• Remarketing lists

The correct answer is: Remarketing lists

Explanation: If you use Campaign Manager to manage your display advertising, you can sign into Campaign Manager and create audience lists of visitors who complete a Floodlight activity on your site. In Search Ads 360, you can see which Campaign Manager audience lists are also responding to your search ads. If you see that a display audience generates paid search conversions at a significantly different rate from other audiences, you may be able to increase the efficiency of your search campaigns by setting up search remarketing targets for this audience.

Read more here: https://support.google.com/searchads/answer/6103109