单选题After POST, the error message ‘Invalid system disk. Replace and press any key’ appears. Which of the following is MOST likely the cause?（）AThere is a non-bootable CD in the CD-ROM drive.BThere is a non-bootable DVD in the DVD-ROM drive.CThere is a non-bootable Blu-Ray in the Blu-Ray drive.DThere is a non-bootable floppy in the floppy drive.
单选题
After POST, the error message ‘Invalid system disk. Replace and press any key’ appears. Which of the following is MOST likely the cause?（）
A
There is a non-bootable CD in the CD-ROM drive.
B
There is a non-bootable DVD in the DVD-ROM drive.
C
There is a non-bootable Blu-Ray in the Blu-Ray drive.
D
There is a non-bootable floppy in the floppy drive.
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