Answer:
e. root slide showing zone of maturation
Step-by-step explanation:
Root hairs are the outgrowth of the epidermal cells of roots. They serve to increase the surface area for the absorption of water and minerals from the soil. Root hairs are not present on the root cap which in turn is a protective thimble-like layer to protect the root apical meristem. The region of elongation and meristematic activity of roots also lack root hairs. Rather, the zone of maturation of roots has the root hairs.
They are formed continuously in the area of cell maturation closest to the root tip to replace the damaged ones. The presence of numerous root hairs increases the surface area of the roots that are in contact with the moist soil.