Your company plans to migrate to Azure. The company has several departments. All the Azure resources used by each department will be managed by a department administrator. You need to recommend an Azu

Using multiple subscriptions allows each department to have its own logical boundary for resources, billing, and administrative control. This provides clear segmentation and delegated management to department administrators, while simplifying billing and resource governance without the overhead of separate Azure AD directories.

Using multiple Azure Active Directory (Azure AD) directories would create separate identity stores, significantly increasing administrative overhead for managing users, groups, and cross-directory access, which is not ideal for minimizing effort within a single company.

Multiple regions are about geographical distribution of resources for availability and latency, not logical segmentation for departmental administration or minimizing administrative effort.

While resource groups provide logical grouping of resources, they exist within a single subscription and do not offer the same level of administrative and billing separation as multiple subscriptions, making cross-departmental access controls and cost management more complex within one subscription.