Nerves branch in intervals from which of the following structures in a chordate embryo? (1 point)

tail
pharyngeal pouches
notochord
hollow nerve cord

The correct answer is option D, " hollow nerve cord"

Reason -

A hollow nerve cord primarily called a Dorsal Hollow Nerve cord during development from ectoderm branches and rolls into a hallow structure. In Chordate the hallow nerve lies at the top of an species or it is located near to the notochord. This nerve cord in the chordates develops into the brain and spinal cord which later on forms the part of central nervous system.  

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what's the rest of the question