The artist that used his energy and movement to create what some viewers considered extreme unity and others considered total variety was created by this mid 20th century artist:

a) pollock
b) matisse
c)o'keefe
d) hockney

earn more about David Hockney's life and art at ... paintings of Los Angeles swimming pools, David Hockney is considered one ... 2011 he was voted the most influential British artist of the 20th century. ... Hockney's early paintings incorporated his literary leanings, and he used fragments of ...

Explanation:

D) Hockney

the answer is counterpoint.

counterpoint definition: "the art or technique of playing a melody or melodies in conjunction with another, according to fixed rules."

counterpoint is present in a lot of baroque music- such as bach (notably his wtc prelude and fugues) and scarlatti, but can also be found in music by mozart, beethoven. it can even be found in music as modern as john williams!