Which service should you use to assess whether your company's Azure environment complies with regulatory requirements?

Microsoft Defender for Cloud (formerly Azure Security Center) is the correct choice because it provides unified security management and advanced threat protection across your hybrid cloud workloads. It continuously assesses your environment against security benchmarks, including regulatory compliance standards like PCI DSS, ISO 27001, and Azure Security Benchmark, and offers recommendations to improve your compliance posture. Azure Service Health informs you about the health of Azure services and regions, not your compliance with regulations. Azure Knowledge Center is a general resource for documentation and learning, not a compliance assessment tool. Azure Advisor provides personalized recommendations for optimizing your Azure resources for cost, performance, reliability, operational excellence, and security, but its primary focus isn't regulatory compliance.