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: Medicine
To assure surgical hemostasis, the best blood product
administered	preoperatively to	patients	with	classic
hemophilia is: 
Select and explain. 
A. Whole blood, B. Factor 8 concentrate, C. Fresh frozen plasma, D. Factor 9 concentrate
B: Factor 8 concentrate
Answer: B: Factor 8 concentrate 
Explanation: None