What can gradual colour change add in radial balance?

Correct answer: Movement and depth from the centre outward

The correct answer is A: gradual colour change can create movement and depth from the centre outward. In radial balance, lines, shapes, or colours are organised around a central point and appear to spread like rays or the parts of a wheel. When colour changes gradually, the eye follows the transition from one area to the next instead of stopping suddenly. A lighter or darker change can also suggest distance, layering, or outward expansion, although colour alone does not create literal three-dimensional depth. B is wrong because radial balance normally depends on an organised relation to the centre, often with repetition or symmetry. C is wrong because gradual colour change does not automatically erase outlines. D is unrelated to visual meaning: the physical weight of paper is a material property, not a compositional effect. Memory cue: radial means “from a radius or centre”; ask where the eye travels.