Final answer:
Filtered Search is the search feature in ServiceNow that can help narrow down search results. Option d.
Step-by-step explanation:
The search feature that can be used to help narrow down search results in ServiceNow is Filtered Search.
Unlike the other search features mentioned, Filtered Search allows users to apply specific filters or criteria to their search, helping to refine and narrow down the results to a more specific subset.
For example, users can filter their search results based on specific categories, such as priority, assignment group, or status, to quickly find the information they're looking for.