Answer:
here you go
Explanation:
The theremin is a monophonic instrument; which is to say, it can only produce one pitch at a time. It has about a five-and-a-half octave range. Its low range can sound like a cello or string bass, mid range to upper range can be vocal-like and the top end is brilliant and piercing.
Perspective allowed for much more life-like paintings and allowed for a three dimensional look.
D) drums. hope this helps :)
