The correct definition of pollination is:

Which of the following is pollinated by water?

The transfer of pollen grains from the anther to the stigma of another flower of the same plant is genetically known as:

Which is an incorrect statement for wind-pollinated plants?

Identify the set of correct statements:
$A$. The flowers of Vallisneria are colourful and produce nectar.
$B$. The flowers of water lily are not pollinated by water.
$C$. In most of water-pollinated species,the pollen grains are protected from wetting.
$D$. Pollen grains of some hydrophytes are long and ribbon like.
$E$. In some hydrophytes,the pollen grains are carried passively inside water.
Choose the correct answer from the options given below.

In which of the following plants is pollination by water most commonly observed?