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: Pharmacology
[{'content': 'All of the following actions of aspirin are mediated by inhibition of prostaglandin synthesis EXCEPT : \nSelect and explain. \nA. Analgesia, B. Closure of patent ductus arteriosus, C. Hyperventilation, D. Bleeding tendency', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]