Which option shows correct form and shadow consistency?

Shadows of all objects follow the same light source

The correct answer is A because a believable drawing normally establishes one light source and applies its direction consistently to every object. The light-facing side receives the highlight or lighter value, while the cast shadow falls away from the source; the exact length and softness may change with distance and form, but the basic direction must agree. This shared lighting logic makes several objects appear to occupy the same space. Option B creates visual confusion because random shadow directions suggest several unexplained lights. Option C breaks the relationship between illumination and shadow, while D denies the usual away-from-light direction of a cast shadow. Consistency therefore supports form, depth, and unity.

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