The correct option is D Anemophily
Anemophily or wind pollination is a form of pollination whereby pollen is distributed by wind. Almost all gymnosperms are anemophilous, as are many plants in the order Poales, including grasses, sedges and rushes.
Versatile anther is anther whose attachment is near its middle, thus enabling it to swing freely.
Anthers are rice grain-shaped organs found at the end or filament of a flower's stamen. They are the part of the flower, which generates and releases pollen. Versatile anthers are those placed crosswise on their filaments, forming a T-shape. This makes the anther more able to withstand strong winds, which would otherwise break it away as the filament twists. Consequently, those species of plants that have flowers with versatile anthers all rely on the wind to spread their pollen.