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': 'Cyclo-oxygenase pathway of arachidonic acid metabolism does not give rise to: \nSelect and explain. \nA. Thromboxane A2, B. Prostaglandin, C. Leukotrienes, D. Prostacyclin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]