A vSphere Administrator is tasked with implementing a production VMware vSAN cluster and has followed the design and sizing guide to correctly size the environment. Which two requirements represent valid VMware recommendations? (Choose two.) 

Answer options:

A. A disk group must be composed of more than one cache disk and at least one capacity disk.
B. All-Flash configurations do not require a caching tier.
C. A disk group must be composed of one cache disc and at least one capacity disk.
D. The cache tier should be sized to no less than 10% of the capacity tier.

CD