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': 'Antihypertensive may act by blocking all of following except: \nSelect and explain. \nA. Alpha–adrenoceptors, B. ATP dependent K+  channels, C. Nor adrenaline release, D. Beta adrenoceptors', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]