Answer: The periphery (outside).
- A The centre (pith)
- B The periphery (outside)
- C The phloem side
- D No fixed place
Correct answer: B. The periphery (outside)
Explanation: Roots are exarch: protoxylem lies towards the outside (periphery) and metaxylem towards the centre.
Concept context
Internal tissue organisation: meristems, permanent tissues (xylem, phloem, parenchyma), and secondary growth. Frequently tested in NEET.