问题：
[单选题]14. 一台计算机,开机自检是无报警声,屏幕无任何显示,主机与显示器电源指示灯均不亮,则最有可能的故障原因是( )
A、电源线插接不良
B、显示卡故障
C、显示卡驱动程序损坏
D、显示器故障
参考答案：
A
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