Which line can suggest restlessness or tension?

Sharp zigzag line

The governing concept is that different line qualities create different emotional and visual effects. A sharp zigzag line changes direction abruptly, producing a broken, energetic, and unstable rhythm. Because the eye must repeatedly change direction while following it, the line can suggest agitation, restlessness, danger, or tension. Therefore option B is correct. A soft curved line generally feels flowing and gentle, a calm horizontal line often suggests stability and rest, and a circular line tends to feel continuous or enclosed. These associations are not absolute rules, because context matters, but they are standard visual effects taught when studying expressive line. The question asks for the strongest conventional suggestion of tension, which is the sharp zigzag.

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