What are two recommended reasons for configuring a cluster with at least one node in addition to the minimum required number? (Choose two.)

What are two recommended reasons for configuring a cluster with at least one node in addition to the minimum required number? (Choose two.)
A . To ensure object accessibility
B . To support the use of RAID-6
C . To provide more flexible storage policy options
D . To provide full protection during maintenance mode operations
E . To support data at rest encryption on vSAN hybrid clusters

Answer: CD

Explanation:

Reference: https://blogs.vmware.com/virtualblocks/2018/05/24/vsan-deployment-considerations/