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: Surgery
[{'content': 'Patient is alive but injuries are extensive that he will not survive with the care which is available is classified as which color under triage \nSelect and explain. \nA. Red, B. Grey, C. Green, D. Black', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]