You need to produce a monthly report listing all new Azure Resource Manager (ARM) resource deployments in an Azure subscription. Which Azure service should you use to obtain this deployment activity?

The Azure Activity Log records subscription-level events, including ARM resource deployments, making it the ideal service for tracking new deployments. You can filter and export this log data to generate monthly reports. Azure Advisor provides recommendations for optimizing Azure resources, not a log of deployment activities. Azure Analysis Services is a fully managed platform as a service (PaaS) that provides data modeling capabilities, unrelated to tracking resource deployments. Azure Monitor action groups are used to trigger actions based on alerts, not to collect or report on deployment history.