Which is not a way to create balance in art

Correct Answer choice is:

4: through the stability of elements on either side of an imaginary line,

Creating a balance in an art is the way the elements of art are arranged to create a feeling of stability in a work. There are two types of balance in the art that are widely used to create balance in paintings, Symmetrical and Asymmetrical balances. Symmetrical means when two halves of a work are identical, whereas Asymmetrical is the balance in which both sides of the central axis are not identical.