单选题A PC is powered on and begins POST. The PC takes a long time when scanning for drives. The BIOS reports no hard drive can be found but the CD-ROM is identified. The technician knows that there are two hard drives on the primary EIDE controller and a CD-ROM on the secondary EIDE controller. Which of the following is the MOST likely cause of the problem?（）ABoth hard drives have the master jumper in place.BOne hard drive is set as master and the other slave.CThe hard drive data cable is reversed.DBoth hard drives have the cable select jumper in place.
单选题
A PC is powered on and begins POST. The PC takes a long time when scanning for drives. The BIOS reports no hard drive can be found but the CD-ROM is identified. The technician knows that there are two hard drives on the primary EIDE controller and a CD-ROM on the secondary EIDE controller. Which of the following is the MOST likely cause of the problem?（）
A
Both hard drives have the master jumper in place.
B
One hard drive is set as master and the other slave.
C
The hard drive data cable is reversed.
D
Both hard drives have the cable select jumper in place.
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