The correct option is D Endosperm and embryo
Edible part of paddy or rice is the endosperm and the embryo. In rice plant, the fruit or the edible part is called as caryopsis. Rice is a fruit. The fruit of these cereals is caryopsis. A caryopsis is a type of simple dry fruit that is monocarpellate and indehiscent and resembles an achene, except that in a caryopsis the pericarp is fused with the thin seed coat. The caryopsis is popularly called as a grain and is the fruit typical of the family Poaceae, which includes wheat, rice and corn. The term grain is also used in a more general sense as synonymous with cereal. Considering that the fruit wall and the seed are intimately fused into a single unit and the caryopsis or grain is a dry fruit.
Thus, the correct answer is option D.