This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Antiplatelets and Fibrinolytics, Subject name: Pharmacology
[{'content': 'Mechanism of action of tranexamic acid in controlling bleeding is? \nSelect and explain. \nA. Inhibits plasminogen, B. Promote platelet aggregation, C. Cause vasoconstriction, D. Promote fibrin synthesis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. (a) Inhibits plasminogenRef Lippincott's Pharmacology 4/e, p 265", 'role': 'assistant'}]