You need to select the backup solution for Contoso. Which solution should you use?

Premium tier Azure Backup is incorrect because it does not satisfy the scenario's requirement to keep backup data within on-premises infrastructure under Contoso's control.

Basic tier Azure Backup is incorrect for the same reason - it stores data in Azure, which conflicts with Contoso's stated constraints.

An on-premises backup solution is correct because the Contoso scenario specifies constraints such as data sovereignty, regulatory compliance, or existing infrastructure that prevent use of cloud-based backup. On-premises solutions allow full control over backup storage location and retention without relying on Azure connectivity or cloud storage tiers.

Standard tier Azure Backup is also a cloud-based solution and therefore does not meet Contoso's requirement for an on-premises backup approach.