This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: A.N.S., Subject name: Pharmacology
[{'content': 'Synaptic transmission in the autonomic ganglion is usually: \nSelect and explain. \nA. Adrenergic, B. Peptidergic, C. Cholinergic, D. Mediated by substance P', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (C) Cholinergic(Ref: Katzung 10/e p76; KDT 8th/e p104)Autonomic ganglia (both sympathetic as well as para-sympathetic) release ACh that stimulates the NN nicotinic receptors on the post-ganglionic fibres.', 'role': 'assistant'}]