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
The recommended level of anti-coagulation for most patients is an INR of 
Select and explain. 
A. 1.0-2.0, B. 2.5-3.5, C. 2.0-3.0, D. 3.0-4.56
C: 2.0-3.0
Answer: C: 2.0-3.0 
Explanation: None