单项选择题

A.Use the 'HMC Management > Restore HMC Data' option to first restore just the HMC Data..
B.Use the 'HMC Management > Restore Upgrade Data' option to first restore just the Upgrade Data.
C.Use the 'HMC Management > Restore HMC Data' option to first restore the HMC Data and then the Upgrade Data.
D.Use the 'HMC Management > Restore Upgrade Data' option to first restore the Upgrade Data, and then the HMC Data.