Eichhornia crassipes is a:

Correct option is A

Correct Answer: (a) Free Floating Aquatic Plant
Explanation:
→ Eichhornia crassipes (water hyacinth) floats freely on the water surface with bulbous petioles and roots dangling into the water.
→ It does not root in sediments under normal circumstances, allowing rapid spread.
Information Booster:
→ Its free-floating habit causes shading of submerged plants and reduces gas exchange, harming aquatic ecosystems.
Additional Information (Other Options):
(b) Submerged: e.g., Hydrilla.
(c) Emergent: e.g., Typha.
(d) Terrestrial: land plants.