Critical Reasoning (CR) | Re: The optic nerves of identical twins are genetically identical.

Conclusion :- Therefore, this discovery proves definitively that blindness is caused by damage to the structure of the optic nerve.
Option B :-The relative size of the optic nerve of visually impaired individuals is not the result of corrective treatments or medications used to treat visual impairment.
This option shows that the shrinkage of the optic nerve of impaired persons is not due to an alternate cause i.e Corrective treatments or medications used to treat visual Treatment. The alternate
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