Why Might Changes in Visual Processing Cause a Corollary Change

Why might changes in visual processing cause a corollary change in cognitive performance?

A) Because the visual system is the primary system we use to acquire information about our environment and guides our decision making process
B) Because the visual system provides us with good acuity
C) Because the visual system allows us to identify objects in our environment
D) Because the visual system gives us the "big picture"