The correct answer is: D. Bad or disconnected speaker
When you boot a PC and don’t hear any beep, this could suggest that the speaker is bad or disconnected. The speaker is usually located inside the case of the PC, and it is used to provide audio feedback, such as beeps and error codes. If the speaker is bad or disconnected, you will not hear any beeps when you boot the PC.
The other options are not correct. Option A is incorrect because the monitor is not responsible for providing audio feedback. Option B is incorrect because
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