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
[{'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. C1 activators', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Thromboxane A2", 'role': 'assistant'}]