The six major organs of green flowering plants are: roots, stems, leaves, flowers, fruits, and seeds. Plants absorb water and inorganic salts through roots and transport them to leaves and other parts through stems for use by other parts. , mainly photosynthesize organic matter in the chloroplasts of mesophyll cells, so roots, stems, and leaves are vegetative organs. After a flower opens, it undergoes pollination and fertilization to form fruits and seeds, which are then used to reproduce offspring. Therefore, flowers, fruits and seeds are reproductive organs. The edible part of radish is the root, which is a nutritional organ.

So choose: D