Which Azure tool provides a centralized way to manage and deploy updates across multiple subscriptions and resource groups?

Azure Blueprints allow you to define a repeatable set of Azure resources that implement and adhere to an organization's standards, patterns, and requirements. This includes deploying resource templates, policies, and role assignments consistently across subscriptions and resource groups, making it ideal for managing and deploying updates or standardized environments. Azure Policy focuses on enforcing rules and effects over resources, ensuring compliance but not directly deploying updates. Azure Resource Manager (ARM) is the deployment and management service for Azure, allowing you to create, update, and delete resources, but it's the underlying engine, not the centralized management tool for blueprints. Azure Monitor is used for collecting, analyzing, and acting on telemetry data from your Azure and on-premises environments, not for deploying updates.