(B) The human body has $12$ pairs of cranial nerves. These nerves are numbered based on their position of origin from the brain. The $1^{st}$ cranial

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(B) The human body has $12$ pairs of cranial nerves. These nerves are numbered based on their position of origin from the brain. The $1^{st}$ cranial nerve is the olfactory nerve,and the $2^{nd}$ cranial nerve is the optic nerve,which is responsible for transmitting visual information from the retina to the brain.