Veeam Backup & Replication in-line deduplication is most helpful when: (Choose two.)
A. VMs that need to be backed up are highly transactional
B. VMs are created from the same template and Per-VM Backup Files are disabled
C. VMware vSphere Changed Block Tracking is disabled
D. VMs that need to be backed up have a lot of free space on their disks
B D
https://helpcenter.veeam.com/docs/backup/hyperv/compression_deduplication.html?ver=110
B+D is right: https://helpcenter.veeam.com/docs/backup/hyperv/compression_deduplication.html?ver=95u4