Answer:
The correct answer is option D) chordates.
Step-by-step explanation:
Chordates are animals belonging to the phylum Chordata which are the animals with a vertebrate. This phylum has a characteristic feature that is they have a dorsal nerve cord, notochord, pharyngeal slits, a post-end tail, and an endosteal at some point of their life cycle.
These five structure are the characteristic of this phylum. Humans belong to this phylum.
Thus, the correct answer is option - D) chordates.