The correct answer is C. IBM Content Navigator for Microsoft Office, used in Business Automation Navigator content scenarios, integrates repository capabilities directly into Microsoft Office applications. Its core purpose is not merely editing local Office files; it brings repository interaction into the Office user experience. The integration enables users to search for content, browse repository content, and check documents in and out from the repository through Microsoft Office applications. This is critical in governed content environments because check-out and check-in preserve version control, repository integrity, auditability, and collaboration discipline. Option A is too narrow because it emphasizes editing and Outlook while missing repository operations. Option B omits the check-in/check-out capability and limits the statement to Word and Excel. Option D incorrectly shifts the scope to OneDrive rather than FileNet or IBM content repositories. The integration is therefore best understood as repository-aware Office access: find, browse, reserve, edit, and return governed documents. References/topics: Business Automation Navigator, IBM Content Navigator for Microsoft Office, FileNet repository integration, search, browse, check-in/check-out.