Which effect is most affected if hatching remains straight against the curvature of a round fruit?

Correct answer: Volume and surface flow

The governing concept is form-following hatching. On a round fruit, curved or appropriately angled strokes should respond to the surface’s turning direction; this helps the eye read the object as three-dimensional. If the strokes remain mechanically straight against the curvature, they flatten the form and interrupt the sense of surface flow. B is correct. Hatching does not change the fruit’s actual height, colour identity, or cast-shadow length.