If the user can hear sound through a Bluetooth headset but not through the laptop's internal speakers, the issue is likely related to the laptop's audio settings. One of the most common causes is that the laptop's speakers might be muted, either in the system settings or via a hardware mute button. This is the simplest and most likely solution to the problem.
* B. Toggling the laptop's mute setting: Checking whether the laptop is muted, either through the keyboard shortcut or the system sound settings, is a quick way to resolve this common issue.
Why the other options are incorrect:
* A. Updating the Bluetooth drivers: The issue is not with the Bluetooth headset, as it is working correctly. The problem is with the laptop's speakers.
* C. Updating the speaker drivers: Updating the drivers is not the first step in troubleshooting, as the issue is more likely related to settings rather than outdated drivers.
* D. Replacing the laptop's speakers: This is an extreme step and unlikely to be necessary if the problem is simply related to audio settings.
This scenario covers hardware troubleshooting and falls under the Hardware and Software Troubleshooting domain in the CompTIA A+ Core 1 exam.