Final answer:
b) No, ghost shadows do not come up bigger than the real shadow.
Step-by-step explanation:
The size of a shadow depends on the relative positions of the light source, the object casting the shadow, and the surface on which the shadow is cast. In general, if the object or the light source is closer to the surface, the shadow will appear larger. However, if a light source casts a shadow that overlaps with a shadow created by another object, the combined shadow may appear larger than the individual shadows.
For example, if you stand near a wall and a lamp is placed between you and the wall, your shadow will appear larger than your actual shadow because it combines with the shadow of the lamp.
Therefore, the answer to the question is: No, ghost shadows do not come up bigger than the real shadow.