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': 'Relcovaptan is ? \nSelect and explain. \nA. Angiotensin antagonist, B. Renin inhibitor, C. Vasopressin antagonist, D. ACE inhibitor', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is'c'i.e., Vasopressin antagonistVasopressin receptor antagonists (Vaptans)At V1A receptor - RelcovaptanAt V1B receptor - NelivaptanAt V2 receptor - Lixivaptan, sotavapton, tolvaptan, mozavaptanNon-selective - Conivapton", 'role': 'assistant'}]