Whats the question?
I mean yes it was an advancement .
I believe it goes to the military. Hope this helps!! :)
Answer:
Well it is people expressing their selves and they are making their mark on the world and showing how they feel there for people may reflect on this art
Explanation:
The one vibrating faster if you think about when singing in order to hit high notes you must push air faster while when singing lower you slow down the speed o air being pushed its the same with high pitch Nd low pitch frequency higher equals faster and lower equals slower
It is between A and C. C isn't as exaggerated as anguish would be and A looks devious. I'd go more along the lines of C.
