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': 'Uses of  α2 agonists are all EXCEPT: \nSelect and explain. \nA. To produce sedation, B. Glaucoma, C. Benign hyperplasia of prostate, D. Hypertension', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]