A customer has a&#81

A customer has a file server with RAID-5 using 8KB random I/Os， with 67% reads and 33% writes.  How should the disk controller cache be configured for optimal performance？（）

• AUse write-back cache
• BUse write-back cache with battery backup
• CUse write-through cache with disk caching enabled
• DUse write-through cache with disk caching disabled