This question is incomplete. Here's the complete question.
In order to perceive object constancy, your brain needs to understand the relationship between the object and one other factor. In the case of size constancy, you understand that the car you see approaching is not
a)
actually changing color, so the other factor must be the wavelengths of the light reflected from the car.
b)
actually growing larger, so the other factor must be how far away the car is from you.
c)
glowing and getting brighter, so the other factor must be how much light is reflected from the car and its background.
d)
changing shape, so the other factor must be the angle at which you are viewing the car.
Answer: b) actually growing larger, so the other factor must be how far away the car is from you.
Step-by-step explanation:
Perceptual constancy is the ability to stabilize the image of something despite the retinal image of it undergoing modifications.
Size Constancy refers to the tendency to recognize an item in a certain size despite how close it is to us.
In this case, object constancy requires to understand the environmental clue of the car approaching us s not growing in size but getting closer.