This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': 'Which of these antihypeensives do not have any central action? \nSelect and explain. \nA. Propranolol, B. Methyl dopa, C. Minoxidil, D. Nitroprusside', 'role': 'user'}, {'content': 'Answer: D \nExplanation: prpranolol is a beta blocker,methyldopa is a alpha agonist, minocidil is a potassium channel blocker and notroprusside is a nitrate all are used in treatment of hypeension. REF KD Tripathi 8th ed.', 'role': 'assistant'}]