Choose the correct one for dicotyledonous stem from given statements.
(i) Epidermis is the outermost protective layer of the stem, covered with a thin layer of cuticle, it may bear trichomes and a few stomata.
(ii) The cells of the endodermis are rich in starch grains and the layer is also referred to as the starch sheath.
(iii) Pericycle is present on the inner side of the endodermis and above the phloem in the form of semi-lunar patches of parenchyma.
(iv) In between the vascular bundles there are a few layers of radially placed parenchymatous cells, which constitute medullary rays.
(v) A large number of vascular bundles are arranged in a ring.
(vi) Vascular bundles are conjoint and closed.