What emphasize uniform line work and the interrelationship of the compositional shapes. a. Scribbling b. Pen Strokes
c. Rendering.
d. Dots
e. All of above answers

it seems to me that yes they solo on the chord changes.  coltrane for sure solos on the chord changes. instead of changing scales, they use a different method over the chord changes. this melody is very  unique but may often times even be considered simple, which is quite common in this modal  type. for example, there are changes from the key of minor to major in this piece, which makes it  unique in its own way.

the correct answer is the first option. the principle of design that suggests a structural relationship between different elements within a work of art is unity.  unity is the principle of the quality of cohesiveness that is expressed with compositional similarity, oneness and cohesion.