Final answer:
The axons of the retinal ganglion cells form the optic nerve, which carries visual information to the brain and terminates mainly in the brainstem, particularly in the lateral geniculate nucleus and the superior colliculus.
Step-by-step explanation:
The axons from the retinal ganglion cells converge and exit through the back of the eye to form the optic nerve. These axons then carry visual information from the retina to the brain. When these same axons are within the central nervous system (CNS), they are referred to as the optic tract. Therefore, most axons of the retinal ganglion cells terminate in the brainstem, specifically at targets such as the lateral geniculate nucleus of the thalamus and the superior colliculus, both of which are part of the midbrain and diencephalon structures within the brain. The correct answer to the student's question is B) Brainstem.