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
Normal Prothrombin Time is? 
Select and explain. 
A. 5 Second, B. 5-8 Second, C. 11-15 Second, D. 20-25 Second
C: 11-15 Second
Answer: C: 11-15 Second 
Explanation: None