Which of the following statements about hemostatic agents, such as adenosine diphosphate (ADP) and thromboxane A2 (TXA2), is TRUE?
A) They are responsible for converting plasminogen to plasmin.
B) They have their effect early in the clotting process.
C) They convert fibrinogen to fibrin.
D) They limit the clotting cascade to the immediate area of the vessel injury.
B
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