Aleurone layer occurs in the peripheral region of
A. The major portion is occupied by a large starchy endosperm.It is surrounded by a special one-cell thick layer called aleurone layer.
B. The plumule is surrounded by a conical protective sheath, called coleoptile. It is capable of growth and covers the growing shoot tip.
C. The embryo consists of an upper shield shaped scutellum wich is actually a reduced cotyledon.
D. The radicle is covered by a protective sheath called coleorhiza.
So, the correct answer is 'Endosperm'.