What is true of Helmholtz's theory of unconscious inference?

A) It takes distance into account when judging size.
B) It can explain size constancy.
C) It takes the size of the retinal image into account.
D) All of the above.

Unconscious Inference

A process postulated by Hermann von Helmholtz to explain certain perceptual phenomena such as size constancy. For example, an object is perceived to be at a certain distance and this is unconsciously taken into account in assessing its retinal image size, with the result that size constancy is maintained.

Size Constancy

The perceptual understanding that an object's size remains the same despite changes in the distance from which it is observed.