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
[{'content': 'In Lipooxygenase pathway, the formation of the arachidonic acids products which of the following helps in the promote platelet aggregation and vasoconstriction- \nSelect and explain. \nA. C5a, B. Thromboxane A2, C. Leukotriene B4, D. Ci activators', 'role': 'user'}, {'content': 'Answer: B \nExplanation: TXA2- causes platelet aggregation and vasoconstriction PGI2 - inhibit platelet aggregation LTB4- chemotactic C5 is a complement robbins 9th ed page 84', 'role': 'assistant'}]