You are designing a configuration management solution to support five apps hosted on Azure App Service. Each app is available in the following three environments: development, test, and production. You need to recommend a configuration management solution that meets the following requirements: Supports feature flags Tracks configuration changes from the past 30 days Stores hierarchically structured configuration values Controls access to the configurations by using role-based access control (RBAC) permissions Stores shared values as key/value pairs that can be used by all the apps Which Azure service should you recommend as the configuration management solution?