Site Search feature is required to track customer search terms on a website. You can track your customer’s search terms using site search.
- Data Import
- Enhanced Ecommerce
- Search filters
- Site Search
The correct answer is: Site Search
Explanation: Site Search lets you understand the extent to which users took advantage of your site’s search function, which search terms they entered, and how effectively the search results created deeper engagement with your site. Providing a search box on your site and tracking how people use it can provide you important insights into user intent. Each time users search your site, they tell you in their own words what they are looking for.
Use the Site Search Usage report to find out how many sessions included search activity and how many didn’t. To identify the pages from which users started searching, go to the Behavior > Site Search > Pages report.
Read more here: https://support.google.com/analytics/answer/1012264