This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autonomic nervous system, Subject name: Pharmacology
[{'content': 'The following sympathomimetic amine has agonistic action on a1 + a2 + b1 + b3 adrenoceptors, but not on b2 receptors \nSelect and explain. \nA. Phenylephrine, B. Isoprenaline, C. Noradrenaline, D. Adrenaline', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ref:- kd tripathi; pg num:-130', 'role': 'assistant'}]