This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'A 55 year-old man with unstable angina is treated with an intravenously administered glycoprotein IIb - IIIa inhibitor. The mechanism of action of this agent is the ability to. \nSelect and explain. \nA. Dilate coronary arteries, B. Inhibit platelet aggregation, C. Inhibit platelet adhesion, D. Inhibit atherogenesis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Solution:\nGlycoprotein IIb - IIIa\n\nPrevent the action of the platelet surface receptor glycoprotein complex, which is mrequired for formation of fibrinogen bridges between adjacent platelets.\nThus inhibiting platelet aggregation.', 'role': 'assistant'}]