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: Pharmacology
Mechanism of action of transexaminic acid is? 
Select and explain. 
A. Decrease vascular permeability, B. Smooth muscle contraction, C. Activates Plasmin formation, D. Prevents fibrinolysis
D: Prevents fibrinolysis
Answer: D: Prevents fibrinolysis 
Explanation: Ans. is 'd' i.e., Prevents fibrinolysis o Tranexamic acid binds to the lysine binding sites on plasminogen and prevents its combination with fibrin and thus prevents fibrinolysis.