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': 'Neostigmine differs from Pilocarpine in having effects on \nSelect and explain. \nA. Bowel motility, B. Hea rate, C. Salivary glands, D. Skeletal muscle', 'role': 'user'}, {'content': "Answer: D \nExplanation: Pilocarpine is a muscarinic receptor agonist so it doesn't have effects on skeletal muscle (NM). Neostigmine, on the other hand, has indirect actions on both muscarinic and nicotinic receptors.Ref: Katzung Pharmacology; 13th edition", 'role': 'assistant'}]