Final answer:
The process by which blood clots form is called coagulation, and it is an essential part of hemostasis, where fibrinogen is converted into fibrin to stop bleeding. Option c.
Step-by-step explanation:
The process by which blood clots form is known as coagulation option c. This is a critical component of hemostasis, which is the process by which bleeding ceases. Coagulation involves the conversion of fibrinogen, a plasma protein, into fibrin. Fibrin forms a mesh that entraps more platelets and erythrocytes, ultimately producing a blood clot. The formation of a clot can be visualized as a cascade where each event triggers the next, resulting in a robust clot that is essential for preventing excessive bleeding post-injury.