单选题An administrator installed new components on a server. After the device installation， two of the components fail.Which of the following is the cause of the problem？（）AThe server was not powered off correctly.BThe proper ESD procedures were not used.CThe devices were installed in the incorrect sequence.DThe devices are incompatible with the system.
单选题
An administrator installed new components on a server. After the device installation， two of the components fail.Which of the following is the cause of the problem？（）
A
The server was not powered off correctly.
B
The proper ESD procedures were not used.
C
The devices were installed in the incorrect sequence.
D
The devices are incompatible with the system.
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