In which situation can a broken line be more meaningful than a continuous line?

When an incomplete path or uncertain boundary must be shown

The governing concept is the expressive meaning of line continuity. A continuous line gives an uninterrupted edge or route, while a broken line deliberately introduces gaps. Those gaps can communicate that a path is incomplete, a boundary is only suggested, or an object is partly hidden or uncertain. Therefore, option A is correct. A broken line is meaningful when the artist does not want to claim that the boundary is fully visible or completely definite. Option B generally calls for a firm continuous contour. Option C contradicts the purpose of gaps. Option D usually requires a clear, unbroken outline so that the final form is easily read. The interpretation can depend on context, but incompleteness or uncertainty is the best general explanation for a broken line.

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