If shading on a cylinder looks like a sudden hard band, what is the most suitable correction?

Correct answer: Create a gradual transition of values

The correct answer is B: create a gradual transition of values. A cylinder has a curved surface, so the light generally changes gradually as the surface turns away from the light. Intermediate tones help show this continuous curvature. A sharp boundary may instead make the shading look like a separate band. A cast shadow can have a sharper edge, but the shading across the curved form usually needs a gradual transition.