Hint: Pollination is the transfer of pollen from a male part of a plant to a female part of a plant, later enabling fertilisation and the production of seeds, most often by an animal or by wind.Pollinating agents are animals such as insects, birds, and bats; water; wind; and even plants themselves, when self-pollination occurs within a closed flower.
Let’s discuss the question and find the proper answer.
Mulberry trees are either dioecious or monoecious, and sometimes will change from one sex to another. The flowers are held on short, green, pendulous, nondescript catkins that appear in the axils of the current season's growth and on spurs on older wood. They are wind pollinated and some cultivars will set fruit without any pollination.Thus, pollination occurs by means of wind in Mulberry.
Additional Information: Mulberry requires little fertilisation. When planting out new trees top dressing the planting opening with 20 – 30 L of fertilizer and rehashing this in late-winter for the initial 2 years will be all that could possibly be needed to make them go. After this, they ought to be fine, particularly so on the off chance that you are developing the tree in polycultures.
Hence option (A)Wind is the correct answer.
Note: The flowers of Mulberry are borne in short pendent catkins. Catkins are the clusters of flowers that are free to move and are characteristic of wind pollinated flowers. Thus, the anthers are borne in male catkins so that they can shed their pollen as they move due to wind. The female flowers are also pendulous so that pollen can be catched easily.