An example of a seed with endosperm, perisperm, and caruncle is

Explanation

(c): In castor seed, testa, and tegmen are united together. The seed coat is tough and bright due to scleroprotein. Over a narrower end, a brownish pad is found which is called a caruncle. The caruncle is a carbohydrate in nature. This protects micropyle and develops as an integumental outgrowth after fertilization. Below the seed coat, a very thin membrane is found over the kernel and called perisperm (the persistent nucellus). Below the perisperm, there is a large, white, swollen, and oily mass called endosperm.