The standard Knowledge component for Lightning Experience is specifically designed to meet this requirement. When added to a Case Lightning record page using the Lightning App Builder, it automatically performs a search based on keywords from the case's subject and other fields. This provides agents with a dynamic, context-sensitive list of suggested articles, helping them find relevant information quickly and respond accurately without leaving the case record.

A. The Knowledge related list only displays articles that have already been manually attached to the case; it does not proactively suggest relevant articles.

C. Lightning components, like the Knowledge component, are configured on Lightning record pages via the Lightning App Builder, not the classic page layout editor.

1. Salesforce Help, "Add the Knowledge Component to a Record Page": This document explicitly states, "Add the Knowledge component to your case and work order pages to let your support agents easily find and use articles... The Knowledge component suggests articles based on keywords from the case." This directly supports the use of the Knowledge component for suggesting relevant articles.

2. Salesforce Help, "Set Up the Knowledge Component for the Lightning Service Console": This guide details the configuration process and functionality. It notes, "The Knowledge component uses the text in the case subject to search for articles... When an agent opens a case, the component shows a list of suggested articles." This confirms the component's role in providing context-sensitive suggestions.

3. Salesforce Help, "Page Layouts in Lightning Experience": This document clarifies the distinction between page layouts and Lightning record pages. It states, "On a record page, you can think of the page layout as a container for a set of fields, a related list, or a custom link... The overall structure of a record page, its components... are controlled by the Lightning record page." This confirms that components are not added via the page layout editor.