Question

the solution present inside root hair with dissolved nutrients​

Answer 1

Root hairs are the lateral epidermal extensions or tubular outgrowths in the roots (zone of maturation) of plants.

The root hairs penetrate into the soil and prevent harmful microbes from entering the plant through the xylem vessels.

They increase the surface area for absorption of water and nutrients from the soil.

So, the correct answer is 'Epidermal extensions'

Answer 2

Answer:

Root hairs, or absorbent hairs, are tubular outgrowths of a trichoblast, a hair-forming cell on the epidermis of a plant root. These structures are lateral extensions of a single cell and are only rarely branched. They are found in the region of maturation, also called the zone of differentiation[1] of the root. Just prior to and during root hair cell development, there is elevated phosphorylase activity.[2] Plants absorb water through the roots from the soil by bulk flow[citation needed]. Root hair cells are adapted to this process by increasing root surface area for the purpose of taking in more water.