Answer: Epidermis.
- A Cortex
- B Epidermis
- C Pericycle
- D Endodermis
Correct answer: B. Epidermis
Explanation: Root hairs are extensions of single epidermal (epiblema) cells, greatly increasing the absorbing surface.
Concept context
Internal tissue organisation: meristems, permanent tissues (xylem, phloem, parenchyma), and secondary growth. Frequently tested in NEET.