The correct answer is Azure Blob Storage.

Azure Blob Storage is purpose built for storing large amounts of unstructured data such as images and video and it is optimized for HTTP access so web front ends can retrieve media efficiently. It offers scalable throughput and bandwidth and integrates with CDNs and cost optimized access tiers for frequently or infrequently accessed content.

Azure Files provides managed SMB and NFS file shares and it is useful for lift and shift scenarios and shared file systems. It is not the best choice when you need to serve large public media at scale to web clients compared to Blob Storage.

Azure Disk Storage delivers block level disks for virtual machines and it is intended for attaching OS and data disks to VMs. It is not designed for direct serving of large media objects to web front ends.

Azure Queue Storage is a messaging service used to decouple application components and manage asynchronous work. It is not used for storing or serving media assets.

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