Why does line show direction of hair?

Correct answer: Because lines are drawn in the natural flow direction of the hair

Answer: A, because lines are drawn in the natural flow direction of the hair. Hair does not usually lie as a single flat shape; it follows a parting, curve, wave, or outward flow. By observing that flow and placing strokes along it, an artist helps the viewer understand how the hair grows and moves. Lines also follow changes in form, such as curls or locks. Option A is correct because direction of the strokes carries the direction of the hair. Option B is incorrect because darker colour can show shadow or depth, but colour alone does not tell the viewer which way the hair flows. Option C is incorrect because paper thickness does not determine the drawn direction or shape of hair. Option D is incorrect because a frame surrounds the picture and does not make hair round. A useful process is: observe the hair’s parting, identify the main flow, draw broad directional lines, and then add a few smaller strands. The same principle helps with grass, fur, and fabric folds. Memory cue: follow the flow, not random strokes.