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: Pathology
[{'content': 'Which is the least resistant to 02 depletion ? \nSelect and explain. \nA. Liver, B. Hea, C. Kidney, D. Spleen', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Hea", 'role': 'assistant'}]