单选题A technician receives a laptop work order stating that the mouse pointer from the touchpad is moving randomly around the screen. Which of the following should the technician do FIRST？（）AReboot the computer.BReplace the touchpad.CClean the touchpad.DUpdate the driver.
单选题
A technician receives a laptop work order stating that the mouse pointer from the touchpad is moving randomly around the screen. Which of the following should the technician do FIRST？（）
A
Reboot the computer.
B
Replace the touchpad.
C
Clean the touchpad.
D
Update the driver.
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