What Statement Best Describes the Process of Blood Coagulation

What statement best describes the process of blood coagulation?

A) A series of biochemical reactions that transforms circulating blood into an insoluble gel through conversion of fibrin to fibrinogen
B) A series of biochemical reactions that transforms circulating blood into an insoluble gel through conversion of fibrinogen to fibrin
C) The interaction of phospholipids and calcium on the platelet membrane resulting in aggregation.
D) The interaction of phospholipids and thrombin on the platelet membrane resulting in adhesion
E) None of the above