Of the statements provided identify the incorrect statements , which are not the characteristic features of leech and select the appropriate code .
I . The body of Hirudinaria granulosa is soft , vermiform , elongated and dorsoventrally flat .
II. The segments 3rd-26th are further divided into rings of annuli .
III . The mouth of leeches is guarded by a structure called velum .
IV . The anterior and posterior suckers are meant for adhesion and locomotion .

Options

A. III and IV
B. I and IV
C. II and IV
D. All of these

Answer

D