This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pharmacology, Subject name: Pharmacology
[{'content': '5HT3 receptors belong to which of the following group of receptors? \nSelect and explain. \nA. Metabotropic, B. Fastest acting receptors, C. Slowest acting receptors, D. Enzymatic receptors', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 5HT3 receptors among serotonin receptors are the only ion channel receptors among serotonin group Ion channel receptors are fastest acting receptors Intracellular -slowest acting Ref: HL sharma KK sharma 3rd edition pg no: 62', 'role': 'assistant'}]