This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
Half life of alteplase 
Select and explain. 
A. 3 min, B. 6 min, C. 9 min, D. 12 min
B: 6 min
Answer: B: 6 min 
Explanation: Ref Harrison 19 th ed pg 758 Atleplase has a plasma half-life of 4-6 minutes.