This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hematology, Subject name: Pharmacology
Which of the following acts at site A? 
Select and explain. 
A. Aspirin, B. Vorapaxar, C. Abciximab, D. Ticagrelor
B: Vorapaxar
Answer: B: Vorapaxar 
Explanation: Ans. B. VorapaxarVorapaxar does not affect ADP-mediated platelet aggregation, coagulation parameters, or bleeding time.A. Protease-activated receptor-1 (PAR-1) antagonists-VorapaxarB. Adenosine diphosphate (ADP) receptor inhibitors - Ticlopidine, Clopidogrel, Prasugrel, TicagrelorC. Glycoprotein IIB/IIIA inhibitors -Abciximab, Eptifibatide, TirofibanD. Irreversible cyclooxygenase inhibitors- AspirinE. OthersPhosphodiesterase (PDE3) inhibitor -CilostazolAdenosine reuptake inhibitor - Dipyridamole