Which of the following have a role in blood clotting?

Correct option is B

Correct Answer: (b) Thrombocytes
Explanation:
→ Thrombocytes (platelet-like cells in fishes) are responsible for initiating blood clotting.
→ They aggregate at wound sites and help prevent excessive blood loss.
Information Booster:
→ Fishes have nucleated thrombocytes unlike mammalian platelets.
→ Also involved in immune responses.
→ Clotting is crucial for survival in injury-prone aquatic habitats.
Additional Information (Other Options):
(a), (c), (d) – primarily immune cells.