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 anti-inflammatory
cytokine 
Select and explain. 
A. IL 13, B. IL 10, C. IL 18, D. TGF beta
C: IL 18
Answer: C: IL 18 
Explanation: None