单项选择题
Atechnicianmanagesaserverthatcontainssensitivedata.Theservercurrentlyhastwohard drives，onehostingtheoperatingsystemandothergenericfilesandthesecondhostingsensitive data.Thetechnicianneedstoimplementatechnologythatwouldguardagainstdatalossforonly thesensitivedata，whileaddingonlyoneadditionalharddrive.Whichofthefollowingshouldthe technicianimplementtoavoidreformattinganydrives？（）
A.RAID0
B.RAID1
C.RAID3
D.RAID5
A.Theservercurrentlyhastwohard
B.Thetechnicianneedstoimplementatechnologythatwouldguardagainstdatalossforonly
C.Whichofthefollowingshouldthe
D.RAID0
E.RAID1
F.RAID3
G.RAID5