Final answer:
Assigning a tag to an Azure resource group doesn't automatically tag the resources within it. To apply the same tag to each resource, you must do so individually. Some services may inherit the group's tags, but this isn't a standard rule for all Azure services.
Step-by-step explanation:
If you assign a tag to a resource group in Azure, it does not automatically assign that tag to all the resources contained within that resource group. Instead, the tag is associated with the resource group itself. Tags that are applied to the resource group are used to organize and consolidate billing information, grant access policies, or categorize resources for governance purposes. If you want every resource within the group to have the same tag, you must assign it individually to each resource.
It's important to note that some services may inherit tags from the resource group on a provisioned basis, but this is not a blanket rule across all Azure services. Thus, the correct answer to the question is: A) The same tag is assigned to the resource group, but not necessarily to each resource within the group. Individual resources may have different tags depending on how they were configured.