What command is used to re-add a partition to a software RAID setup?

A.
raidadd

B.
raidhotadd

C.
raidaddhot

D.
addraid

Explanation:
raidhotadd command is used to add the new disk on RAID array or as a RAID spare disk.
Example: raidhotadd /dev/hda13 /dev/md0