What confusion occurs if reflected light on a sphere is made as bright as the main highlight?

The logic of the light source and shadow side will weaken

Direct answer: A. The main highlight is normally the strongest bright area produced by the primary light source. Reflected light is light that returns from nearby surfaces into the shadow side, so it is usually weaker and helps reveal the turning of the sphere without replacing the main light. If reflected light is made equally bright, the shadow side may look as though it has another dominant light source. The hierarchy between highlight, light side, halftone, reflected light, and core shadow becomes unclear. As a result, the sphere may lose believable roundness and the direction of illumination becomes confusing. A is correct because it identifies this broken lighting logic. B is wrong because extra brightness does not automatically improve accuracy. C is unrelated: reflected-light value does not make a cast shadow vanish. D is impossible because changing value cannot turn a sphere into a cube. Memory cue: reflected light supports the shadow side; it must not compete with the main highlight.

This is a Class 9 Art Education question. Chapter: Elements of Art. Topic: Form.