Which of the following is an example of constructive criticism for a friend who speaks too softly?
- You are so annoying! You need to use your adult voice in meetings.
- You should quit mumbling. It is so frustrating to try and understand you.
- Your voice is so nice. I would love for you to speak up, so I can hear you better.
- You talk like you are whispering. Speak up so people don't struggle to hear you.