Q: Fact 1: Echinoderms lack a centralized nervous system. Fact 2: Echinoderms are represented by the starfish. Given the two facts above, what lack a centralized nervous system?

Available options:
(I) barnacles.
(II) amphibians.
(III) insects.
(IV) primates.
(V) alpacas.
(VI) Pesticides.
(VII) starfish.
(VIII) snakes.
A:
(VII)