An HR business partner is configuring a new Project for recurring policy questions from managers.

Under the objective Configure Claude Projects with instructions and knowledge sources , the project knowledge base is designed to store authoritative, canonical, and frequently accessed reference material that remains stable across multiple chat sessions.

Option D accurately selects the core, evergreen operational documents required for recurring HR inquiries—the current active handbook, leveling framework, and standardized FAQ. Including outdated handbooks (Option A) risks hallucination and policy contradictions because Claude might cite obsolete rules. Uploading raw email trails (Option B) injects uncurated conversational noise, conflicting statements, and potential privacy leaks into the persistent context. Relegating essential, standard documents to manual per-chat uploads (Option C) undermines the primary efficiency benefit of Claude Projects, which is to eliminate repetitive context uploading across team workflows.