This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Blood Vessels), Subject name: Pathology
[{'content': 'Inhibition of platelet aggregation by - \nSelect and explain. \nA. ADP, B. Thromboxane A2, C. Thrombin, D. Bradykinin', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Bradykinin Platelet aggregationAggregating factorPreventing aggregatng factoro ADPo Epinephrineo VWFo ThrombospondinoTXA2o Serotonino Fibrinogeno Collegeno Immune complexo Thrombin.oPGI2o EndochelinoNOo Bradykinin.", 'role': 'assistant'}]