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': "'Sterile needle test' helps in differentiating ? \nSelect and explain. \nA. Healing proces, B. Depth of burns, C. Degenerative process, D. Infection", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Depth of burns", 'role': 'assistant'}]