Answer: the best option is A (sensory input from the retinas of both eyes converges at the optic chiasm and information from each eye is delivered to both the left and right sides of the brain)
Step-by-step explanation:
At the optic chiasm, nerve fibers from half of each retina cross over to the opposite side of the brain. The fibers from the other half of the retina travel to the same side of the brain. Because of this junction, each half of the brain receives visual signals from the visual fields of both eyes. this allows the effect of consensual response in which there is change in pupil size in the eye opposite to the eye to which the light is directed. I hope this helps thanks.