Answer:
The correct answer would be - platelets (in process coagulation)
Explanation:
Platelets are one of essential parts of the blood plasma which plays essential role in a blood clot or coagulation. Platelets are the natural device present in the blood to prevent blood loss.
Blood has thrombin enzyme in it that is activated only if any open wound is present. Thrombin unites with the fibrinogen protein of blood and form fibrin which is needle-like crystals. RBCs are stuck in these crystals and cause a plug known as blood clots to prevent the blood through the wound.
Thus, the correct answer is - platelets (in process coagulation)