You have a Microsoft 365 E5 subscription. You plan to implement Microsoft Purview policies to meet the following requirements: - Identify documents that are stored in Microsoft Teams and SharePoint…

A data loss prevention (DLP) policy is specifically designed to identify sensitive information, such as PII, in locations like Microsoft Teams and SharePoint, and can be configured to report on shared documents containing such data.

A retention policy focuses on retaining or deleting content for compliance, not primarily on identifying sensitive information like PII or reporting on its sharing.

An alert policy generates alerts based on detected activities but doesn't inherently define what sensitive information to detect or how to handle it; DLP policies trigger such alerts for data loss.

A Microsoft Defender for Cloud Apps policy (MCAS) primarily focuses on monitoring and controlling access to cloud apps, identifying Shadow IT, and detecting anomalous behavior, rather than directly identifying PII within documents in Microsoft 365 services for data loss prevention purposes.