A technician is preparing to update the BIOS on a laptop. Which of the following should thetechnician do to prevent problems during the update?（）A. Remove all of the memoryB. Plug in the AC adapterC. Remove the hard drive and optical driveD. Clear the partitions on the hard drive

单项选择题

A technician is preparing to update the BIOS on a laptop. Which of the following should thetechnician do to prevent problems during the update?（）

A. Remove all of the memory
B. Plug in the AC adapter
C. Remove the hard drive and optical drive
D. Clear the partitions on the hard drive

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