If the main figure is made with thin lines and the background with thick lines, what problem may occur?

The main figure may be visually suppressed by the background

This question tests visual hierarchy and the expressive use of line weight. Thick, dark, or strongly repeated lines generally attract the viewer’s attention more quickly than thin and delicate lines. If the background is drawn with heavy lines while the main figure is drawn with weak thin lines, the background may compete with, surround, or visually overpower the subject. As a result, the intended focal point becomes less clear and the figure may appear pushed back. Option A correctly identifies this possible problem. Option B reverses the likely effect, while C is impossible because line thickness does not erase a background automatically. Option D is also incorrect because line weight clearly influences emphasis, depth, contrast, and visual order. Artists can deliberately reverse this hierarchy, but without such an intention it weakens clarity.

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