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 is anti inflammatory? 
Select and explain. 
A. Lipoxins, B. Thromboxane, C. Prostaglandins, D. Interleukins
A: Lipoxins
Answer: A: Lipoxins 
Explanation: Lipoxins are endogenous anti-inflammatory, pro-resolving molecules that play a vital role in reducing excessive tissue injury and chronic inflammation. Lipoxins regulate components of both the innate and adaptive immune systems including neutrophils, macrophages, T and B-cells.