Line is defined as a a. a geometric shape that is open and moves from one point to another
b. a slowly curving path along a plane
c. a path through space
d. the distance or area between, around, above, below and within objects

The answer is Option D. the distance or area between, around, above, below and within objects

melody. a series of single tones which add up to a recognizable whole is called a what kind of layers of sound are heard melody or harmony. how many layers