A compliance team needs to search across all Microsoft 365 Copilot interaction data for a specific employee's prompts and responses as part of an HR investigation. The investigation requires content from the past 60 days. Which Microsoft tool should be used?

A is correct because Microsoft Purview eDiscovery (Premium) can search Copilot interaction data, which is stored in the user's Exchange Online mailbox (hidden folder) and SharePoint. eDiscovery content search allows investigators to search for specific content from a specific user's Copilot interactions within a defined date range and export it for review. B is incorrect because Purview Audit logs capture event metadata (who did what when) but may not contain the full prompt and response content needed for an HR investigation. C is incorrect because Viva Insights provides productivity analytics and does not contain the actual content of Copilot prompts and responses. D is incorrect because Entra ID audit logs capture authentication events, not Copilot interaction content.