单选题A laptop will not output to a connected projector. Which of the following steps should a technician take FIRST?（）APress the appropriate function + monitor key.BAdjust the BIOS settings for external display.CReplace the video card on the laptop.DUpdate video drivers for the video card.
单选题
A laptop will not output to a connected projector. Which of the following steps should a technician take FIRST?（）
A
Press the appropriate function + monitor key.
B
Adjust the BIOS settings for external display.
C
Replace the video card on the laptop.
D
Update video drivers for the video card.
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