When someone is talking you can hear their?
Options:
- being alive
- tongue
- voice
- brain
- speech Hmmm, let me think.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Voice can be heard while talking. When someone is talking you can hear their voice.
So, the answer is voice.