The provided ARM template uses the schema

https://schema.management.azure.com/schemas/2018-0501/subscriptionDeploymentTemplate.json#. This schema indicates that the template is

designed for a subscription-level deployment. Subscription-level deployments are used to

create resources directly within a subscription, such as resource groups, or to deploy

resources across multiple resource groups. The template first defines a resource of type

Microsoft.Resources/resourceGroups to create a new resource group, and then uses a

nested deployment (Microsoft.Resources/deployments) to deploy an Azure Storage account

into that newly created resource group. The New-AzDeployment cmdlet is used to deploy

ARM templates at the subscription scope.

A. New-AzResource: This cmdlet is used to create or update an individual Azure resource,

not to deploy an ARM template that defines multiple resources or control structures.

B. New-AzResourceGroupDeployment: This cmdlet is used to deploy an ARM template to a

pre-existing or specified resource group. Since this template creates the resource group

itself, the deployment must occur at the subscription level.

C. New-AzTenantDeployment: This cmdlet is used for deploying ARM templates at the

tenant scope, which is for resources like management groups or Azure Active Directory

policies, not for creating resource groups and storage accounts in this manner.

Microsoft Learn: "Deploy resources with ARM templates and Azure PowerShell" - This page

describes different deployment cmdlets. New-AzDeployment is used for subscription,

management group, and tenant level deployments. New-AzResourceGroupDeployment is

for resource group deployments.

URL: https://learn.microsoft.com/en-us/azure/azure-resource-manager/templates/deploypowershell

Microsoft Learn: "Subscription deployments with ARM templates" - This page explicitly

states to use New-AzDeployment for subscription-level templates.

URL: https://learn.microsoft.com/en-us/azure/azure-resource-manager/templates/deploy-tosubscription

Microsoft PowerShell Documentation: New-AzDeployment

URL: https://learn.microsoft.com/en-us/powershell/module/az.resources/new-azdeployment

(States: "The New-AzDeployment cmdlet adds a deployment at the current subscription

scope.")

Microsoft PowerShell Documentation: New-AzResourceGroupDeployment

URL: https://learn.microsoft.com/en-us/powershell/module/az.resources/newazresourcegroupdeployment (States: "Deploys resources to a resource group.")