The correct option is B They develop leaves
Vegetative growth in plants is defined as the period of growth of the plant between germination and flowering. During this period, all other parts undergo development other than the reproductive parts - the flowers. Pollen grains are minute structures present in flowers that carry male reproductive cells for sexual reproduction. Ovules are borne in flowers that contain female reproductive cells required for sexual reproduction in plants. Since flowers are not developed during the vegetative growth of plants, there is no production of pollen grains or ovules.