Answer: Option A
Explanation: Blood clotting helps in healing the cut by stopping the excessive blood loss during a cut. When there is a minor cut on the artery then the collagen fiber present in it gets exposed which starts the clotting process.
The clotting factors present in the blood releases fibrin which sticks to together and seal the wound from inside.
The cut vessels heals and the blood clot dissolves after several days of the wound.