单项选择题Company.comhasencounteredaproblemontheHMC,whichrequiresaccesstotherootshellontheHMC.WhichofthefollowingisnecessarytoaccesstherootuseridontheHMC?()
A.Enable remote commands on the HMC Configuration menu,then use ssh to login to theHMC,enter su - root
B.Login to the HMC as hscpe and run pesh,using a temporary password from IBM Support,afterward, enter su - root
C.Login to the HMC as hscroot,then run pesh,using a temporary password from IBM Support, afterward,enter su - root
D.Enable remote commands on the HMC Configuration menu,then telnet in as hscroot,entersu - root