This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hematology, Subject name: Pharmacology
A useful thrombolytic agent that leads to plasmin activation is: 
Select and explain. 
A. Vitamin K, B. Heparin, C. Streptokinase, D. Aspirin
C: Streptokinase
Answer: C: Streptokinase 
Explanation: Among the given options only streptokinase is a fibrinolytic agent. Heparin is an anti coagulant and aspirin is an anti platelet drug. From medical pharmacology padmaja 4th edition Page no 341