Answer:tone is
Your tone in speaking expresses how you feel about the word or phrase mentioned
In-depth knowledge of one functional area. let me know if i'm fight
The correct answer is Harmonizer.
Why?
You have every person in the group (Apeers to be a music band), but you have no one to prudce it. This is why harmonizer is the correct answer.
Hope this helps!
I would say that the writer is using either personification or metaphor. However, I find B. personification to be the most logical answer.