A disk group with four disks contains a two-column striped and mirrored volume. Which step
must be performed first to change the volume to have three columns without losing the
redundancy?

A.
use the vxdg command to add two disks to the disk group

B.
use the vxassist command to relayout the volume

C.
use the vxrelayout command to relayout the volume

D.
use the vxassist command to convert the volume

Explanation: