What three steps must be taken when removing a host from a vSAN-enabled cluster?

What three steps must be taken when removing a host from a vSAN-enabled cluster?
(Choose three.)
A. Remove VMkernel port with vSAN traffic checkbox checked.
B. Remove the host from vSAN cluster.
C. Remove disks from diskgroups, remove disk groups.
D. Place the host into maintenance mode with Full Migration option selected.
E. Create at least one vSphere Standard Switch.