A storage administrator is configuring a storage pool on a Unity system containing Flash disks and SAS disks.
What tier will the system assign to each of the disk types?

A.
Flash: Extreme Performance
SAS: Performance

B.
Flash: Performance
SAS: Capacity

C.
Flash: Extreme Performance
SAS: Capacity

D.
Flash: Capacity
SAS: Performance

Explanation:
Hybrid pools can have up to 3 tiers (Extreme Performance, Performance, and Capacity).
For the Extreme Performance tier, use only SAS Flashdrives.
For the Capacity tier, use only SAS drives.
https://www.emc.com/collateral/white-papers/h15093-emc-unity-best-practices-guide.pdf (page 12)