Individuals Suffering from "Walleye" and Other Conditions in Which the Eyes

Multiple Choice

Individuals suffering from "walleye" and other conditions in which the eyes are misaligned have difficulty with depth perception because

A) the cortex receives messages from both eyes, making it difficult to attend to one visual stimulus.
B) the visual system suppresses vision in one eye in order to avoid having the experience of double vision.
C) the misaligned eye movements are "jittery" making it difficult to form a stable percept.
D) they are unable to use any picture depth cues.