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
Which of the following is not an acute phase reactant - 
Select and explain. 
A. CRP, B. Fibrinogen, C. Tissue factor, D. Serum amyloid A
C: Tissue factor
Answer: C: Tissue factor 
Explanation: Ans. is 'c' i.e., Tissue factor