A CTO is investigating a catastrophic outage. A TKG Worker Node containing several critical database First Class Disks (FCDs) suffered data corruption.
The node was running on a host experiencing high load, and standard VMDK backup routines (via VADP) were disabled to save CPU cycles. The storage team attempted to restore the FCDs using low- level API commands.
The engineer uses vim-cmd to inspect the FCD state:
```
[root@esx-08:~] vim-cmd vmsvc/get.tasklist
Task: ReconcileFCD_Task
Status: Failed
Error: "VStorageObjectNotFound"
[root@esx-08:~] vim-cmd vmsvc/device.diskaddexisting 20 /vmfs/volumes/vsan/fcd/88b1...
Error: "The disk object requires a CryptoKeyID which was not found in the current KMS provider."
```
How do the concepts of FCD independence and vSAN Encryption interact to create this restoration failure? (Select all that apply.)