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': 'In mass causality cases, the mechanism to sort out patient is? \nSelect and explain. \nA. Treating first patients with life threatening conditions, B. Treating patients with higher chances of survival with least available infrastructure, C. Treating patients with multiple organ failure & that need equipment and mobility, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]