How can a directory be excluded from a mksysb backup（）

A、A.Put an entry in the /etc/exclude.rootvg file.

B、B.Put an entry in the /etc/mksysb.exclude file.

C、C.Remove the directory’s entry from the mksysb /image.data file.

D、D.Remove the directory’s entry from the /var/adm/ras/bosinst.data file.