Users report slow performance when saving files on a server with a RAID 5 array, but not when reading files from that server. Which of the following is the MOST likely cause?

Mismatched drives would likely affect both read and write performance, or at least not specifically slow down writes while reads remain normal.

Bad sectors could lead to read errors or slow performance for both reads and writes when accessing those specific sectors, not a general slowdown for only writes.

A cache battery failure often forces a RAID controller to operate in write-through mode or disable its write-back cache. This dramatically slows down write operations because data must be fully committed to disk before the operation is acknowledged, while read performance is generally unaffected, directly matching the reported symptoms.

A disk drive failure in a RAID 5 array would cause the array to enter a degraded state, affecting both read and write performance and triggering alerts, not just slow writes.