单项选择题

A.AB.BC.CD.DE.EYou connect your computer to a multimedi……

You connect your computer to a multimedia projector. When you play a video, you cannot hear the audio.
You n eed to ensure that the projector provides audio and video playback.
What should you do?（）

A.A
B.B
C.C
D.D
E.E

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