Why is variety needed while creating unity through lines?

So that the composition stays connected without becoming monotonous

The governing principle is unity with variety. Unity is created when lines share a relationship through repeated direction, rhythm, related character, or a consistent visual language. Variety introduces controlled changes in length, thickness, curvature, spacing, or direction, preventing repetition from becoming dull. Option A is correct because it expresses both goals: the composition remains visually connected while retaining energy and interest. Option B is contrary to purposeful design, since meaningful relationships are needed for unity. Option C describes loss of communication rather than balance. Option D is also incorrect because patterns and rhythms can be useful parts of unity. Variety should not mean random difference; it should be controlled so that each change supports the subject, emphasis, and overall composition.

This is a Class 9 Art Education question. Chapter: Elements of Art. Topic: Line.