Observe the diagram given below and select the correct statements .

I. The nematocysts are present in epidermis as well as basal disc of Hydra
II. Hydra shows the presence of 8-12 tentacles.
III. Medusae of Hydra reproduce both by sexual and asexual method.
IV. Hypostome is the most sensitive region in the body of Hydra.
V. The pedal or basal disc helps in attachment as its shows the presnce of a glandular zone which secretes adhesives.