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
Endogenous chemoattractants are all except ? 
Select and explain. 
A. C5a, B. Integrins, C. LTB4, D. 11, 8
B: Integrins
Answer: B: Integrins 
Explanation: Ans. is 'b' i.e., Integrins