Biology for IGCSE & O level - Transport In Animals (Section 1 - No. 17)

What is the correct sequence of events during blood clotting?

Fibrinogen -> Fibrin -> Clot formation

Clot formation -> Fibrinogen -> Fibrin

Fibrin -> Fibrinogen -> Clot formation

Clot formation -> Fibrin -> Fibrinogen

Fibrinogen is converted to fibrin which then forms the blood clot.