If an infant perceives a door as the same shape whether it is closed or ajar, this represents

A) size constancy.
B) intellectual asymmetry.
C) perceptual constancy.
D) retinal parity.

Perceptual Constancy

The psychological phenomenon where people perceive sensory information as stable and unchanging despite variations in the physical stimuli.

Door

A movable barrier used to open and close the entrance to a building, room, or vehicle.

Shape

The form or external appearance of an object or figure, defined by its outline or contour.