A CIO wants a single pane of glass to manage governance across multiple tenants and subscriptions. Which Azure service enables this?

Azure Lighthouse allows service providers (or internal IT teams managing multiple tenants/subscriptions) to manage Azure resources across multiple customer tenants from a single control plane. This provides the "single pane of glass" for delegated management and governance. Azure Blueprints define repeatable sets of Azure resources that implement standards and compliance, but don't offer cross-tenant management. Azure Monitor collects, analyzes, and acts on telemetry from Azure and on-premises environments, focusing on operational insights, not cross-tenant governance. Azure Resource Graph provides efficient resource exploration across subscriptions, but it's a query service, not a management plane for delegated access.