Fact 1: Echinoderms lack a centralized nervous system. Fact 2: Echinoderms are represented by the starfish. Given the two facts above, what kind of animal doesn't have a centralized nervous system?
OPT:
[a]. dog
[b]. mammals
[c]. cows
[d]. bird
[e]. human
[f]. elephants
[g]. starfish
[h]. a fish
[g].