You are exploring how Microsoft 365 Copilot uses Microsoft Graph to deliver AI-powered experiences.

Microsoft 365 Copilot is designed to work within the Microsoft 365 ecosystem and use organizational context that is already governed by Microsoft Entra ID, Microsoft 365 permissions, and compliance controls. By default, Copilot can use Microsoft Graph signals and content that exist in Microsoft 365 workloads the user already has access to—most commonly emails, files, meetings, and chats . That corresponds to A .

The key concept is permission-trimming: Copilot doesn’t magically gain access to everything; it can only surface or use data that the signed-in user is permitted to access in Microsoft 365. This is what makes Copilot valuable for productivity scenarios—summarizing email threads, drafting replies, generating meeting recaps, creating documents from your files, or pulling context from Teams chats—because those artifacts are already part of daily work and already subject to tenant policies.

The other options are not “by default” Microsoft Graph content for Copilot: B (file shares) typically requires additional integration or migration into Microsoft 365 repositories or indexing via connectors; it’s not inherently available. C is unrelated to Microsoft 365 tenant work data. D (public web) is not “information in Microsoft Graph”; web grounding is a separate capability and not the default Graph workload data source referenced here.