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
[{'content': 'Streptokinase causes increase in ? \nSelect and explain. \nA. Plasmin, B. Thrombin, C. Kallikrein, D. Angiotensin II', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Plasmin Streptokinase Fibrinolytic drug Obtained from group C streptococci Streptokinase is inactive as such. It combines with' circulating plasminogen molecules to form an activator complex, which then causes limited proteolysis of other plasminogen molecules to generate active enzyme plasmin.", 'role': 'assistant'}]