If light comes from the upper left then in which direction will the cast shadow generally extend?

Correct answer: Toward the lower right

The governing lighting rule is that a cast shadow extends generally away from the light source. If the light arrives from the upper left, the blocked area projects toward the opposite lower-right side, subject to the surface and the object’s form. Therefore option B is correct. The upper-left direction is near the source, straight upward ignores the diagonal relationship, and a cast shadow is not located inside the object.