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': 'Dopamine receptor with inhibitory action ? \nSelect and explain. \nA. D5, B. Di, C. D2, D. None', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., D2 Two types of dopamine receptors (D I , D2) were originally described. Three more (D3, D4, D5) have now been identified and cloned. All are G protein coupled receptors and are grouped into two families: Dl like: (Dl, D5) are excitatory D2 like: (D2,3,4) are inhibitory", 'role': 'assistant'}]