How can the administrator provide temporary relief?

An administrator arrives at work and begins their morning checks on a four node, all-flash vSAN Cluster. They notice the vSAN datastore reached 99% capacity due to a single node failure.

How can the administrator provide temporary relief?
A . change FTT=1 with RAID-1 (Mirroring) to FTT=0 No data redundancy
B . change FTT=1 with RAID-1 (Mirroring) to FTT=1 with RAID-5 (Erasure coding)
C . change FTT=1 with RAID-5 (Erasure coding) to FTT=0 No data redundancy
D . change FTT=1 with RAID-5 (Erasure coding) to FTT=1 with RAID-1 (Mirroring)

Answer: B