Epidermis is derived from
a)	Cambium	b)	Primary xylem	c)	Secondary xylem	d)	Protoderm

(d)

Epidermis Epidermis is the outermost protective layer of plant organs. It is usually simple layered but in the leaves of tropical plants  oleander, banyan) and velamen of some roots, the epidermis is more than one layer thickness. The epidermal tissue system is derived from the protoderm