Duringbootup，alaptopscreendisplaysverticalcoloredlinesandthentheLCDscreengoesblank.Therearenodisplayproblemswhenconnectedtoanexternalmonitor.Whichofthefollowingactionsshouldbetakentoresolvetheproblem？（）A.Replace the laptop.B.Replace the LCD screen.C.Replace the LCD pixels.D.Re-select the LCD in Device Manager.

单项选择题

During boot up， a laptop screen displays vertical colored lines and then the LCD screen goes blank. There are no display problems when connected to an external monitor. Which of the following actions should be taken to resolve the problem？（）

A.Replace the laptop.
B.Replace the LCD screen.
C.Replace the LCD pixels.
D.Re-select the LCD in Device Manager.

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