In art, what is overlapping?
a. joining several diagonal lines moving in different directions.
b. technique used to make a form appear to move back in space.
c. placing part of one shape or form in front of another.
d. the use of value to create the illusion of depth.

Correct answer is "C".

In art, we can say that "overlapping"  is a placement of an objects over another one, partly covering it. This technique  to creates illusion of the third dimension. With this technique we can analyse who or what is close or far from the viewers.

The painting "Three Musicians" from Pablo Picasso is an excellent sample of this.

The use of value to create the illusion of depth.

imma come back to you?