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: Medicine
[{'content': 'Acute coronary Syndrome includes all except \nSelect and explain. \nA. STEMI, B. NSTEMI, C. Stable angina, D. Unstable angina', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]