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': 'Stimulation of which receptor will release renin? \nSelect and explain. \nA. Alpha - 1, B. Alpha - 2, C. Beta -1, D. Beta -2', 'role': 'user'}, {'content': 'Answer: C \nExplanation: beta-1 receptors', 'role': 'assistant'}]