The characteristic of Vertebrata are
I. high degree of cephalisation is seen in the group.
II. Coelom is well-devoloped and of enterocoelous type.
III. Cranial nerves either 8,10or 12 pairs.
IV. Notochord is seen throughout the life of all animals.
A. I, II and III
B. I and II
C. II and IV
D. I and III
