Your organization wants a weekly, automated summary of Azure Advisor recommendations across all subscriptions, grouped by category (cost, security, reliability, performance, operational excellence). The summary must be saved to a Storage account and posted to a Microsoft Teams channel without writing custom code. Which two services should you combine to implement this at scale? (Choose two.)

Azure Resource Graph is the correct choice for querying Advisor recommendations across all subscriptions because it allows for efficient, large-scale querying of Azure resources and their properties, including Advisor recommendations, using Kusto Query Language (KQL). This directly addresses the requirement for "all subscriptions" and grouping "by category." Azure Logic Apps is the correct choice for orchestration because it provides a serverless workflow engine that can be triggered on a schedule, connect to various services (like Azure Storage for saving output and Microsoft Teams for posting), and perform actions without writing custom code. Azure Monitor Workbooks are for visualizing data and creating interactive reports, not for scheduled exports and posting to Teams. Azure DevTest Labs is for managing development and test environments, not for scheduled report generation. Azure Automation Update Management is for managing updates across machines, not for cross-subscription reporting of Advisor recommendations.