单项选择题

A.FromtheDisplayproperties,extendthedisplay.
B.FromtheDisplayproperties,modifytheresolutionsettings.
C.RestartthecomputerinVGAMode.Rundxdiag.exe.
D.RestartthecomputerinVGAMode.Installthemostup-to-datedriverforthevideographicsadapter.
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