A manager wants a dashboard to visualize the health and performance of cloud resources. Which service should they use?

Azure Monitor is the correct choice because it provides comprehensive tools for collecting, analyzing, and acting on telemetry data from Azure and on-premises environments. This includes visualizing health and performance metrics through customizable dashboards. Azure Resource Graph allows for exploring and querying resources at scale but doesn't primarily focus on performance visualization. Azure Blueprints helps define repeatable sets of Azure resources that implement standards, not monitor performance. Azure Sentinel is a Security Information and Event Management (SIEM) solution for security analytics, not general resource health and performance monitoring.