When you add a file to a Microsoft 365 Copilot notebook from a Microsoft SharePoint site , you are referencing a document that is stored and managed within Microsoft 365. SharePoint maintains a single authoritative file that can be updated over time (with version history behind the scenes). Copilot notebooks that reference SharePoint content are designed to stay grounded in the current version of that cloud-hosted document, subject to your permissions.

Because Process.docx is stored in SharePoint, the notebook reference points to the SharePoint document itself rather than a static local snapshot. When another user updates the document in SharePoint, the “latest” content becomes the current version available at that location. When you chat in the notebook, Copilot will use the file as it exists now in SharePoint, which means it will reference the most recent version.

Option A would be typical only if you attached a local file upload (a static copy) rather than a SharePoint-hosted file. Option C is incorrect because Copilot uses the current file at the referenced location, not multiple historical versions simultaneously.

Therefore, the chat will reference the most recent version of Process.docx .