Final answer:
The primary role of Microsoft Defender for Cloud is cloud workload protection, which includes threat detection and identity management across cloud environments.
Step-by-step explanation:
Microsoft Defender for Cloud is a tool that provides cloud security posture management (CSPM) and cloud workload protection (CWP) capabilities.
While it touches on various aspects of cloud security, its primary role can be best described as a comprehensive solution for cloud workload protection.
This encompasses a range of services including threat detection, identity management, and helping to secure the network, applications, and data across hybrid cloud environments.