Visual processing begins in the primary visual cortex, located in the the lobe.

Answer

The occipital lobe is one of the four main lobes of the cerebral cortex in the brain of vertebrates. The occipital lobe is the optical processing center of the mammalian brain including most of the anatomical region of the visual cortex. The primitive visual cortex is Brodmann area 17, generally described visual one.

so we know the answer cannot be c because no insect or animal starts as an adult

the answer is a. a swimming larvae

because since they are sea animals they automatticaly have to know how to swim they cannot just sink to the bottom

sorry if this is the incorrect answer.