What is the benefit of implementing VM-level gradually of Volts?

When using a HPE 3 PAR Storeserv array to enable a user to apply arrayCbased data services to specific application and VM’s.

What is the benefit of implementing VM-level gradually of Volts?
A . Data sprawls eliminated by performing the migration functions at the array level using 3PAR HPE Dynamic Optimization
B . Efficiency is maintained by reclaiming space from deleted or migrated VMs using capabilities built into the storage ASIC
C . Performing is accelerated by detecting and moving the most frequently Caccessed VMs into the fast class tier
D . Performance is accelerated by leveraging the deduplication capabilities built into the storage ASIC

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Answer: B