Which option correctly shows shadow consistency for multiple forms?

All cast shadows follow the same light source

The governing concept is consistency of illumination. When several forms appear in the same scene, the light source should establish a coherent direction for highlights, turning planes, cast shadows, and reflected light. If the light comes from one side, the cast shadows generally extend away from that source, with their direction and relative length responding to the position and height of the light. Therefore option A is correct: all cast shadows should belong to the same lighting system. Option B creates visual confusion and destroys spatial unity. Option C separates highlights from the cause that explains them, while D normally reverses the expected relationship because a cast shadow is generally projected away from the light source, not toward it.

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