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 leukotrienes helping in Leukocyte adhesion? 
Select and explain. 
A. LTB4, B. LTD4, C. LTE4, D. LTC4
A: LTB4
Answer: A: LTB4 
Explanation: ACTION METABOLITE Vasoconstriction Thromboxane A2, leukotrienes C4, D4, E4 Vasodilation PGI2, PGE2, PGD2 Increased vascular permeability Leukotrienes C4, D4, E4 Chemotaxis, leukocyte adhesion LTB4, lipoxins Ref: Robbins Pathology 7th Ed Page 69.