The Correspondence Problem Affects the Visual System as It Detects

The correspondence problem affects the visual system as it detects motion in that:

A) our perception of movement depends not only on the moving object, but also on the background
B) as some objects in the visual field become uncovered (through disocclusion) , others become covered (through occlusion)
C) our visual system is susceptible to perceiving illusions
D) we must link an image on the retina at one time point to a slightly different image at another time point