Correct Answer. A. Verify that the device's audio settings are not muted Ensuring that the audio settings on the device are correctly configured and not muted is a simple and essential first check that can resolve common audio issues in collaboration apps.
Option B is incorrect because deleting and reinstalling the app is more disruptive and should be considered only after simpler settings have been checked.
Option C is incorrect as an operating system update, while important, is less likely to resolve an immediate audio issue unless it is known to fix a specific bug affecting audio.
Option D is incorrect because Wi-Fi connectivity typically affects all network-related functions, not just audio.