The correct selections are No, No, Yes . Microsoft states that in Microsoft 365 Copilot and Microsoft 365 Copilot Chat, prompts and responses aren't used to train the underlying foundation models . Microsoft also documents that Copilot works within the Microsoft 365 service boundary and that data accessed through Microsoft Graph isn't used to train foundation models . That makes statements 1 and 2 No .
Statement 3 is Yes because Microsoft documents that Microsoft 365 Copilot honors the same data protection, access control, and compliance capabilities that apply across Microsoft 365. Microsoft also states that Copilot only surfaces organizational data that users already have permission to access, including content retrieved through Microsoft Graph in services such as SharePoint, OneDrive, Exchange, and Teams.

Explanation:

The correct answer is eDiscovery . In Microsoft Purview, eDiscovery is the solution used to search for content and export copies of that content from Microsoft 365 locations such as SharePoint and OneDrive.
Microsoft Learn states that when you export search results from eDiscovery, copies of native Office documents and other documents are exported . That directly matches the requirement to provide HR with a copy of files .
By contrast, Audit is primarily used to investigate user and admin activity records and can export those audit records to CSV , but it does not export the actual files themselves. Audit would help identify that User1 modified files, but the question asks for copies of the recent files modified by User1 , which is an eDiscovery content search and export scenario rather than an activity-log reporting scenario.
So, among the Microsoft Purview solutions shown, the appropriate selection is eDiscovery because it is the Purview tool designed to find and export the actual content items HR wants to receive.

The correct answer is D. From the Finance site, configure permissions . Microsoft states that Microsoft 365 Copilot honors existing Microsoft 365 permissions and only grounds responses in content that the signed-in user is already allowed to access. That means if users are getting Finance-site content in Copilot responses, those users likely still have permission to that SharePoint content. The direct fix is to review and correct the site, library, folder, or file permissions on the Finance site so only the intended users retain access.
The other options do not directly solve this requirement. Information Barriers are designed for communication and collaboration segmentation scenarios, not for ordinary site-level oversharing remediation.
A Defender data connector is unrelated to SharePoint permission enforcement. Conditional Access controls sign-in and session access conditions, but it does not selectively remove Copilot grounding from one SharePoint site for users who still have site permissions. Because Copilot uses SharePoint and Microsoft Graph permissions as its boundary, the Microsoft-documented corrective action is to fix the Finance site permissions .

Communications Compliance uses OCR (optical character recognition) and machine learning to detect offensive or risky text inside images , including those in SharePoint and OneDrive.
By default, Communications Compliance pseudonymizes user identities to reduce investigator bias. Admins can later de #anonymize if needed.
It does not add disclaimers. It silently monitors communications and flags policy violations; disclaimers are handled by Exchange transport rules, not Communications Compliance.