What problem can occur by using too many heavy lines everywhere in a drawing?

Difference between main and ordinary parts may reduce

The governing concept is line-weight hierarchy: different thicknesses help the viewer understand emphasis, depth, and order. If every contour is drawn with the same heavy pressure, no part receives special visual importance. The main subject, supporting details, foreground, and background may appear equally strong, so the difference between important and ordinary areas becomes weak. Therefore option A is correct. Option B is incorrect because excessive heaviness can make a drawing crowded rather than clearer. Option C is incorrect because beauty depends on suitable control and arrangement, not merely darker marks. Option D is impossible because heavy lines remain visible; they do not disappear. Use strong lines selectively and lighter lines for less important details.

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