Microsoft 365 Copilot notebooks use the version of a file that was uploaded or attached at the time it was added to the notebook. When a document such as Process.docx is added from a local folder, Copilot references that uploaded snapshot of the file. If the file is later modified locally, the notebook does not automatically sync or refresh with the updated local version unless the updated file is re-uploaded.
Microsoft guidance on grounding and file references explains that Copilot works with the specific content stored in Microsoft 365 or the attached artifact within the notebook session. Since the updated version remains in the local folder and was not reattached, Copilot continues to use the originally added version.
Therefore, during subsequent chats in the notebook, Copilot references only the original uploaded version of Process.docx.

According to Microsoft AI Business Professional guidance for Microsoft 365 Copilot, grounding a response means ensuring the AI generates output based on specific, authoritative content rather than relying on generalized training data. When working with enterprise documents such as proposals, grounding is achieved by explicitly referencing the source material within the prompt.
Option C is correct because referencing the proposal content directs Copilot to use that specific document as the primary context for generating the response. Microsoft documentation emphasizes that effective prompts should include clear context and explicit references to relevant files, meetings, emails, or documents stored in Microsoft 365. This reduces hallucinations and ensures factual alignment with organizational data.
Option A is incorrect because relying on training data increases the risk of inaccurate or fabricated information. Options B and D improve prompt clarity but do not guarantee grounding in the proposal itself.
Therefore, explicitly referencing the proposal content is the most reliable and best practice method for ensuring grounded, accurate responses in Microsoft 365 Copilot.

Copilot in Word assists with content generation, summarization, rewriting, and structural organization. It can analyze document headings and insert a table of contents based on structured heading styles, supporting document navigation. It can also generate summaries of key points, which aligns directly with generative AI text analysis capabilities.
Custom watermark formatting and precise page margin configuration are traditional Word formatting functions and are not core generative AI capabilities of Copilot.
Therefore, the correct answers are A and C.