What could be the issue?

A customer has a physical proxy configured for Direct Storage Access without failover to network mode. The backup fails.

What could be the issue?
A . The disks being processed are IDE and/or SATA
B . The datastores are properly zoned and exposed to the proxy server but in read-only mode
C . The storage is not added into the storage infrastructure, inside the backup and replication console
D . Write access has not been enabled on the SAN
E . One or more of the VM disk(s) are on Wols

Answer: D

Explanation:

Reference: https://helpcenter.veeam.com/docs/backup/vsphere/direct_san_access.html?ver=100