What is the best approach to ensure both scalability and high availability for a cloud-based...

Using a RAID (Redundant Array of Independent Disks) setup to provide data redundancy and improve performance.

Deploying a Content Delivery Network (CDN) to cache and serve frequently accessed storage content.

Implementing Network Attached Storage (NAS) devices in a clustered configuration for load balancing.

Utilizing a Storage Area Network (SAN) with redundant controllers and paths for storage access.