This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
All are chemokines except- 
Select and explain. 
A. IL-8, B. Il-1, C. Histamine, D. Eotaxin
C: Histamine
Answer: C: Histamine 
Explanation: histamine is a vasoactive amine, stored in the granules of mast cells, basophils and platelets. chemokines - ILs , TNF, INF gamma, MCP1, Eotaxin and PF4. .ref Robbins 9/e p 48