$I.$ Sunflower seed

$II.$ A wheat leaf

$III.$ Pea plant

$IV.$ Leaf blade of grass

Bulliform cells are present in which of the above plants?

Select the correct statements

$I.$ Epidermal call have small amount of cytoplasm and a large vacuole

$II.$ Waxy layer cuticle is absent in roots

$III.$ Root hairs are unicellular, while stem hairs/trichomes are multicellular

$IV.$ Trichomes are branched/unbranched, soft/stiff and secretory or transpiration preventive

$V.$ Guard cells are dumb-bell-shaped in dicots and bean-shaped in monocots (e.g., grass)

Secondary growth is absent in

Largest number of chloroplast is found in