Which blood cells help in clotting of blood and stop bleeding?

Correct option is A

The correct answer is: A. Platelets

Platelets (also called thrombocytes) are the blood cells responsible for blood clotting. When a blood vessel is injured, platelets gather at the site of the wound and stick together, forming a plug to stop the bleeding. They also release chemicals that activate the clotting cascade, leading to the formation of a clot.

• Red blood cells transport oxygen but do not participate in clotting.
• White blood cells are involved in immune defense, not blood clotting.

Thus, platelets play a crucial role in the clotting process.