Which among the following statements are correct :

(A) Insect  pollinated flowers often have a single  ovule in each ovary and numerous flowers packed into an inflorescence.

(B) Pollination by water is quite rare in flowering plants and is limited to about 30 genera, mostly dicotyledons.

(C)  Vallisneria and Hydrilla are  water pollinated plants but  Zostera are wind pollinated flower .

(D) In a majority of aquatic plants such as water hyacinth and water lily, the flowers emerge above the level of water and are pollinated by insects or wind.

(E) To sustain animal visits, the flowers have to provide rewards to the animals.

Choose the correct answer from the given options .

D and E  only.

 .Wind pollinated flowers often have a single ovule in each ovary and numerous flowers packed into an inflorescence.

.Pollination by water is quite rare in flowering plants and is limited to about 30 genera, mostly monocotyledons

.Examples of water pollinated plants are Vallisneria and Hydrilla which grow in fresh water and several marine sea-grasses such as Zostera.

.In a majority of aquatic plants such as water hyacinth and water lily, the flowers emerge above the level of water and are pollinated by insects or wind.

.To sustain animal visits, the flowers have to provide rewards to the animals .Nectar and pollen grains are the usual floral rewards. For harvesting the reward(s) from the flower the animal visitor comes in contact with the anthers and the stigma .