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
Mechanism of action of tranexamic acid in controlling bleeding is? 
Select and explain. 
A. Inhibits plasminogen, B. Promote platelet aggregation, C. Cause vasoconstriction, D. Promote fibrin synthesis
A: Inhibits plasminogen
Answer: A: Inhibits plasminogen 
Explanation: Ans. (a) Inhibits plasminogenRef Lippincott's Pharmacology 4/e, p 265