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': 'An endogenous peptide that causes vasodilation and is inactivated by angiotensin converting enzyme is: \nSelect and explain. \nA. Angiotensinogen, B. Angiotensin–I, C. Angiotensin–II, D. Bradykinin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]