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': 'which chemical mediator is an arachidonic acid metabolite produced by COX pathway \nSelect and explain. \nA. LXA4, B. LXB4, C. SHETE, D. PGH2', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]