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': 'Which has maximum nicotinic effect- \nSelect and explain. \nA. Bethanechol, B. Carbachol, C. Pilocarpine, D. Methacholine', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Carbachol o Amongst the given options carbachol has maximum nicotinic actions. It has nicotinic as well as muscarinic action.", 'role': 'assistant'}]