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: Surgery
Half life of factor 8 is ? 
Select and explain. 
A. 4 hours, B. 8 hours, C. 34 hours, D. 48 hours
B: 8 hours
Answer: B: 8 hours 
Explanation: Ans. is 'b' i.e., 8 hour