If the light source is on the left where will the cast shadow generally extend?

Correct answer: To the right

The governing rule of light and shade is that a cast shadow extends away from the light source. If the light comes from the left, the illuminated side is generally left-facing, while the object blocks light toward the right. Therefore option B is the best answer. The shadow is not normally directed toward the light, and it does not move upward only; its exact shape also depends on the surface and light angle.