Which of the following can be used to allow an organization to manage (AZ-900)

Correct answer: B) Management Groups.
Management Groups are containers that help you manage access, policies, and compliance across multiple subscriptions. They provide a level of scope above subscriptions, allowing you to apply policies and access controls to all the resources within those subscriptions.

While Azure Policies can help enforce compliance within a subscription, Management Groups allow you to enforce policies across multiple subscriptions. Resource Groups are logical containers for organizing resources within a subscription, and Azure Resource Manager templates are used for deploying and managing Azure resources in a repeatable and declarative manner but do not directly address compliance management across multiple subscriptions.