Among the statements given below about Nereis , select the incorrect statements about the organism and mark the correct code .
I . The phenomenon of sexual maturation of Nereis is called heterotoky .
II . The pygidium or Nereis is called anal segment .
III . The alimentary canal of the organism has three distinct regions .
IV . Fertilisation is external and occur in sand .
V . Mesenteron of Nereis has oesophagus , stomach and intestine .

Options

A. I and III
B. II and V
C. II, III and IV
D. I and IV

Answer

A