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': 'Salbutamol is preferred over adrenaline in an asthmatic due to: \nSelect and explain. \nA. Sho acting, B. Adverse effects of adranaline, C. Safer, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans: B Salbutamol is more selective in its action- acts on beta 2 receptors on brochus adrenaline acts on all alpha and beta receptors', 'role': 'assistant'}]