- A Prop root
- B Tap root
- C Pneumatophore
- D Fibrous root
Correct answer: C. Pneumatophore
Explanation: Pneumatophores are erect, spongy, breathing roots in plants growing in waterlogged conditions (e.g., mangroves like Avicennia). They protrude above water and have pores (lenticels) for gas exchange.
Concept context
Internal tissue organisation: meristems, permanent tissues (xylem, phloem, parenchyma), and secondary growth. Frequently tested in NEET.