According to the AgentForce Data Library Configuration Guide, administrators can restrict indexing and retrieval of Knowledge articles to publicly available ones and enable source visibility for LLM-grounded responses. The documentation states:

“Within the data library settings, under Knowledge Settings, enable ‘Use Public Knowledge Articles’ to ensure only publicly visible content is indexed. To display citations, enable ‘Show Sources’ so the agent links the specific articles or data records used to ground its response.”

Option A correctly reflects these two documented configuration steps.

Option B is incorrect because Salesforce explicitly supports source display for transparency through the “Show Sources” setting.

Option C incorrectly assumes that Data Categories control indexing visibility and source linking, which is handled by explicit Knowledge Settings, not categorization.

References (AgentForce Documents / Study Guide):

AgentForce Data Library Configuration Guide: “Knowledge Settings for Public Article Indexing”

AgentForce Transparency and Source Attribution Notes: “Show Sources Option”

AgentForce Study Guide: “Configuring Knowledge Visibility and Source Display”