In which condition can intentional unevenness of line become an artistic quality?

When it expresses liveliness, hand energy, or feeling

The governing concept is expressive variation: visual irregularity can be purposeful rather than accidental. A line that changes slightly in pressure, speed, thickness, or direction may reveal the movement of the hand and communicate liveliness, tension, softness, hesitation, or personal feeling. It becomes an artistic quality when the variation supports the subject or mood and remains sufficiently controlled for the image to be understood. Option A is correct because it connects unevenness with energy and expression. B describes an unhelpful obstruction, C treats every deviation as error, and D removes communication altogether. The important distinction is between a deliberate expressive choice and careless loss of control.

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