单选题A technician plugs a USB device into the front panel of a desktop computer and nothing happens.The technician knows that plug-n-play is enabled. Which of the following BEST describes a possible cause to this issue?（）A
The technician plugged a USB 2.0 d
题目内容(请给出正确答案)
单选题
A technician plugs a USB device into the front panel of a desktop computer and nothing happens.The technician knows that plug-n-play is enabled. Which of the following BEST describes a possible cause to this issue?（）
A
The technician plugged a USB 2.0 device into a USB 1.1 port.
B
The technician needs to reboot the computer for the device to work.
C
The technician plugged a USB 1.1 device into a USB 2.0 port.
D
The front panel connectors are not plugged into the motherboard.
