Which of the following statements are correct for hydrophily?
(i) Pollination by water is rare in flowering plants and is limited mostly to monocotyledons.
(ii) In majority of aquatic plants such as water hyacinth and water lily pollination takes place by insects and wind
(iii) In most of the water pollinated species pollen grains are protected from wetting by a mucilaginous covering.
(iv) In Vallisneria, female flowers reach the surface of water and receive the pollen grains, whereas in Zostera, female flowers remain submerged and receive pollen grains under water.