01 Why is stroke direction important in creating light and shadow effects with a brush?
Answer and explanation
Correct answer: C. It can show the form and surface direction of an object
Explanation: The governing concept is directional mark-making in form modelling. Strokes that follow or describe an object’s surface can reinforce its curvature, volume, and the direction from which light appears to fall. Option C is correct because direction helps the viewer read both form and surface. Price, paper weight, and brush cleaning are unrelated to this visual effect.