For Over a Minute,Laura Has Been Staring at an Image

Multiple Choice

For over a minute,Laura has been staring at an image with seemingly random areas of white-on-black.When she shifts her gaze from the original image to a white wall,she suddenly sees an image of Jesus on the wall.Which of the following explains this phenomenon?

A) Photoreceptors in the retina have become fatigued.
B) Photoreceptors in the lateral geniculate nucleus have become fatigued.
C) negative afterimage
D) positive afterimage