Fromtheinformationbelow,whatcommandwouldtheadministratorruntoallocatethefilebackedopticaldevice,nameduseful_scripts,tovirtualSCSIadaptervhost0?()
A. mkvdev-devuseful_scripts-vadaptervhost0;loadopt-vdevvtopt0
B. mkvdev-opticaluseful_scripts-vadaptervhost0;loadopt-vdevvtopt0
C. mkvdev-fbo-vadaptervhost0;loadopt-diskuseful_scripts-vtdvtopt0
D. mkvdev-typefbo-vadaptervhost0;loadopt-fbouseful_scripts-vtdvtopt0