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: Gynaecology & Obstetrics
[{'content': 'α - adrenergic receptors are located in which part of urinary bladder \nSelect and explain. \nA. Dome of bladder, B. Base of bladder, C. Both of above, D. None of above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: α - adrenergic receptors are located in bladder base and urethra.', 'role': 'assistant'}]