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单项选择题

A.The system is configuring a device.B.A system initiat……

A system was rebooted and is taking a long time to return. The administrator has logged into the HMC and sees reference code 0c9. What does this mean()? 

A.The system is configuring a device.
B.A system initiated dump has started.
C.The system is varyingon a volume group.
D.The system is running an inbuilt self test.