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: Forensic Medicine
[{'content': 'Acetylcholine acting on nicotinic receptors produces: KCET 12 \nSelect and explain. \nA. Contraction of skeletal muscle, B. Secretion of saliva, C. Bradycardia, D. Pupillary constriction', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Contraction of skeletal muscle', 'role': 'assistant'}]