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: Pathology
Half-life of TGF -B (beta) is 
Select and explain. 
A. 24 hrs, B. 4a hrs, C. 10-12 min, D. 3-5 min
D: 3-5 min
Answer: D: 3-5 min 
Explanation: None